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92
Highlights
47
Differences
5
Reactions
0
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Optoma HD28HDR
vs
Optoma HD39HDR:
92 Highlights & 47 Differences —
So, Which Projector Actually Works Better
Two similar models with key distinctions. Easy guide for your decision.
We ran a full comparison of Optoma HD28HDR and Optoma HD39HDR — diving into product type, native resolution, throw ratio & lens material, standout features, and what makes each projector unique.
Image Scaling Engine Type: Standard
Defines the scaling engine used to upscale lower-resolution content to the projector’s native resolution.
with 35 points higher
Noise Reduction Type: Standard
Indicates the technique used to reduce visual noise and artifacts for a cleaner image.
with 35 points higher
Color Wheel Speed (for DLP): 6x
Defines the rotational speed of the DLP color wheel, affecting color accuracy and rainbow artifact reduction.
with 40 points higher
Optoma HD28HDR vs HD39HDR: A Tale of Two Bright Full HD Projectors
When it comes to home theater and gaming projectors, the Optoma HD28HDR and Optoma HD39HDR represent two solid choices from the same family, sharing core attributes like Full HD 1080p resolution, DLP projection technology, and a stylish white plastic body suitable for tabletop or ceiling mounting. Both models promise vibrant color wheels running at 6x speed and an absence of smoothing technologies such as MEMC or pixel shifting. Despite these similarities, they part ways in brightness output, imaging chip size, throw ratios, and connectivity, crafting distinct experiences for differing user requirements. From their lumens ratings to their audio capabilities and power consumption, these two projectors cater to varied demands in home entertainment setups.
Spotlight on Optoma HD28HDR: Balanced Brightness Meets Efficient Performance
The Optoma HD28HDR stands out as an excellent value option delivering a brightness of 3600 lumens that is bright enough for many home theater and gaming environments. Its relatively large lens aperture of 15.59 allows for a good balance of light gathering, sharpness enhancement between 2 to 4 to keep images crisp without oversharpening, and medium light uniformity that maintains consistency across the screen. Its longer throw ratio of 1.5 to 2.5+ means it requires more room for projection but suits more flexible seating arrangements. On the connectivity front, it covers essential ports with audio out but leaves out RS-232 and VGA. Power users will appreciate its slightly lower normal mode power consumption of 295W and a 27% eco mode power reduction. Its manual focus and dust resistance rating add convenience and durability for everyday use while operating comfortably within a wider storage humidity range of 5-95% RH.
Why the Optoma HD39HDR Might Be Your Next Upgrade
Stepping up to the Optoma HD39HDR, you encounter a projector designed to impress with a brighter 4000 lumens output and a larger 0.65" imaging chip that potentially delivers superior image quality and sharper visuals. Its higher light uniformity rating ensures more consistent brightness across the screen, complemented by a high-quality lens aperture of 2.43. The HD39HDR's shorter throw ratio of 1.12 to 1.47 allows for easier installation in space-constrained rooms, making it ideal for smaller home theaters or versatile gaming setups.
Among its standout features is the inclusion of skin tone correction and a customizable color temperature preset, enhancing color realism especially for cinematic content. Connectivity gains a boost with the addition of RS-232 and VGA ports, accommodating more diverse AV equipment and legacy hardware. The audio experience is also amplified with a robust 10-watt speaker compared to the HD28HDR's 3 watts. While it does consume more power at 325W, it compensates with an efficient 30.5% reduction in eco mode. The sophisticated icon-based menu system and auto source detection add user-friendly touches that optimize the overall control experience.
Quick Take
The Optoma HD28HDR is a smart pick for those seeking solid brightness, balanced sharpness, and an energy-efficient projector with essential connectivity. Meanwhile, the HD39HDR shines for users who want elevated performance through enhanced brightness, richer audio, and greater installation flexibility thanks to its shorter throw and additional ports.
Bottom Line
Ultimately, the choice between the HD28HDR and HD39HDR hinges on your priorities: budget-conscious buyers who prioritize power efficiency and straightforward features will appreciate the HD28HDR's value, while enthusiasts craving advanced image quality enhancements, superior audio output, and more flexible setup options will favor the HD39HDR despite its higher price tag and power usage. Both units deliver vibrant Full HD projection but cater to slightly different segments of the home entertainment market.
Verdict
Winner: Optoma HD39HDR - Offers brighter projection, better image processing with skin tone correction, enhanced audio power, and versatile connectivity ideal for serious home theater enthusiasts.
Runner-up: Optoma HD28HDR - Provides excellent value, balanced brightness, and efficient power use, perfectly suited for budget-minded users who need reliable home theater and gaming performance.
Side by side. The numbers. The features. No drama.
Not just a spec list — this is a side-by-side projectors comparison between Optoma HD28HDR and Optoma HD39HDR, packed with useful details, standout features, and what users actually say. See which projector wins your vote.
Optoma HD28HDR has an Imaging Chip Size of 0.47 inches, whereas Optoma HD39HDR has a larger size of 0.65 inches, potentially impacting image detail and brightness.
Specifies the size of the imaging chip. Larger chips generally improve performance.
In the battle of Imaging Chip Size,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
0.2 inch
measurement.
Don’t keep it to yourself — be the first to react and review the
Imaging Chip Size on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
The Product Type for Optoma HD28HDR is Home Theater,Gaming, while for Optoma HD39HDR it is simply Home Theater, indicating the HD28HDR targets both home theater and gaming uses.
Defines the general classification of this projector.
In the battle of Product Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
42 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Product Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
What is the projection technology type of this projector?
45
Optoma HD28HDR
0Votes
DLP
85
Optoma HD39HDR
0Votes
DLP
vs
Projection Technology Type
Both Optoma HD28HDR and Optoma HD39HDR utilize DLP as the Projection Technology Type, offering similar image generation technology.
Identifies the core imaging technology used.
In the battle of Projection Technology Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Projection Technology Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Imaging Chip Type
What is the imaging chip type of this projector?
45
Optoma HD28HDR
0Votes
DLP Chip
85
Optoma HD39HDR
0Votes
DLP Chip
Optoma HD28HDR
This projector uses a DLP imaging chip, which generally provides sharp images and good color accuracy with fewer motion artifacts compared to other technologies.
Optoma HD39HDR
It uses a DLP imaging chip which typically offers high contrast ratios, good color reproduction, and sharp images.
Indicates the chip architecture that forms the image.
In the battle of Imaging Chip Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Imaging Chip Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Release Year
What is the release year of this projector?
Who knows?
0Votes
Optoma HD28HDR
(Help us out by suggesting one!)
60
Optoma HD39HDR
0Votes
2019
Optoma HD39HDR
This model was released in 2019, reflecting current projector technology and feature sets available at that time.
Shows the year the projector model was released.
Don’t keep it to yourself — be the first to react and review the
Release Year on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Intended Usage Type
What is the intended usage type of this projector?
38
Optoma HD28HDR
0Votes
Home Theater, Gaming
78
Optoma HD39HDR
0Votes
Home Theater, Gaming
Optoma HD39HDR
Designed primarily for Home Theater and Gaming purposes, this projector is ideal for immersive entertainment experiences with vivid visuals and responsive performance.
Describes the ideal application for this projector.
In the battle of Intended Usage Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Intended Usage Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Country of Manufacture
What is the country of manufacture for this projector?
45
Optoma HD28HDR
0Votes
China
85
Optoma HD39HDR
0Votes
China
Indicates where the projector was manufactured.
In the battle of Country of Manufacture,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Country of Manufacture on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
The Brightness Output is 3600 lumens for Optoma HD28HDR, compared to a higher 4000 lumens for Optoma HD39HDR, making the HD39HDR brighter for viewing in lit environments.
Indicates overall light output for visibility in ambient light.
In the battle of Brightness Output,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
400.0 lumen
measurement.
Based on community votes for Brightness Output,
Optoma HD28HDR ◉ earned
0 votes,
less than
Optoma HD39HDR ◉,
which got 1 votes.
Optoma HD28HDR offers a Sharpness Enhancement Type of 2–4 (Balanced) while the Optoma HD39HDR does not specify this feature, indicating a possible advantage in image sharpness control for the HD28HDR.
What is the sharpness enhancement level?
In the battle of Sharpness Enhancement Type,
Optoma HD28HDR ◉ is
better than
Optoma HD39HDR ◉
, delivering
higher
15 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Sharpness Enhancement Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Peak ANSI Lumens
What is the peak ANSI lumens of this projector?
3,600
lumen
0Votes
4,000
lumen
0Votes
Optoma HD28HDR
Brightness output is 3600 lumen, providing a bright image suitable for rooms with some ambient light.
Optoma HD39HDR
With a brightness output of 4000 lumens, this projector can deliver bright images suitable for a variety of ambient lighting conditions.
Industry-standard brightness measurement using ANSI method.
In the battle of Peak ANSI Lumens,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
400.0 lumen
measurement.
Don’t keep it to yourself — be the first to react and review the
Peak ANSI Lumens on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Color Gamut Coverage
What is the color gamut coverage?
100
%
0Votes
95
%
0Votes
Optoma HD28HDR
Color gamut coverage is 100%, indicating the projector can accurately reproduce the full range of colors within the specified color space.
Optoma HD39HDR
Color Gamut Coverage of 95% ensures rich and vibrant color reproduction close to the source content's original colors.
Indicates percent coverage of color spaces such as Rec.709 or DCI-P3.
In the battle of Color Gamut Coverage,
Optoma HD28HDR ◉ is
better than
Optoma HD39HDR ◉
, delivering
higher
5.0 %
measurement.
Don’t keep it to yourself — be the first to react and review the
Color Gamut Coverage on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Maximum Supported Resolution
What is the maximum supported resolution of this projector?
45
Optoma HD28HDR
0Votes
4K
85
Optoma HD39HDR
0Votes
4K
Optoma HD28HDR
The maximum supported resolution is 4K, allowing projection of ultra-high-definition content with great detail and clarity.
The highest resolution signal the projector can accept.
In the battle of Maximum Supported Resolution,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Maximum Supported Resolution on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Contrast Ratio
What is the contrast ratio of this projector?
0
Optoma HD28HDR
0Votes
50,000:1
1
Optoma HD39HDR
0Votes
50,000:1
Optoma HD39HDR
Contrast ratio is 50,000:1, which offers deep blacks and vibrant highlights for good dynamic range in images.
Represents the difference between the darkest black and brightest white produced by the projector.
In the battle of Contrast Ratio,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Contrast Ratio on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Color Bit Depth
What is the color bit depth?
8
bit
0Votes
10
bit
0Votes
Optoma HD39HDR
The projector supports a color bit depth of 10 bit, providing smoother color gradients and more accurate color reproduction, enhancing visual quality.
Determines how finely color gradients are rendered.
In the battle of Color Bit Depth,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
2.0 bit
measurement.
Don’t keep it to yourself — be the first to react and review the
Color Bit Depth on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
HDR Format Support
What HDR formats does this projector support?
15
Optoma HD28HDR
0Votes
HDR10
55
Optoma HD39HDR
0Votes
HDR10
Optoma HD39HDR
Supports HDR10 format, enhancing dynamic range for brighter highlights and deeper shadows in compatible content.
Specifies which HDR formats the projector can display.
In the battle of HDR Format Support,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
HDR Format Support on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Refresh Rate
What is the refresh rate?
120
Hz
0Votes
120
Hz
0Votes
Optoma HD28HDR
The refresh rate is 120 Hz, which contributes to smooth motion rendering, beneficial for fast-action video and gaming.
Determines motion smoothness for gaming and video.
In the battle of Refresh Rate,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
, delivering
equal
120.00 Hz
measurement.
Don’t keep it to yourself — be the first to react and review the
Refresh Rate on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Dynamic Lumens
What is the dynamic lumens rating?
3,600
lumen
0Votes
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Measures boosted brightness in enhanced dynamic modes.
Don’t keep it to yourself — be the first to react and review the
Dynamic Lumens on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Dynamic Contrast Ratio
Deep dynamic contrast at :val.
0
Optoma HD28HDR
0Votes
50,000:1–200,000:1
10
Optoma HD39HDR
0Votes
50,000:1
What is the dynamic contrast ratio?
In the battle of Dynamic Contrast Ratio,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
10 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Dynamic Contrast Ratio on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
HDR Peak Brightness
What is the HDR peak brightness?
3,600
lumen
0Votes
4,000
lumen
0Votes
How bright the projector can go during HDR highlights.
In the battle of HDR Peak Brightness,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
400.0 lumen
measurement.
Don’t keep it to yourself — be the first to react and review the
HDR Peak Brightness on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Motion Processing Type
Smooth motion processing with level :val.
5
Optoma HD28HDR
0Votes
2–5 (Standard)
0
Optoma HD39HDR
0Votes
Not Specified
What is the motion processing level?
In the battle of Motion Processing Type,
Optoma HD28HDR ◉ is
better than
Optoma HD39HDR ◉
, delivering
higher
5 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Motion Processing Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
The maximum screen size capability is nearly identical, with Optoma HD28HDR supporting up to 302 inches and Optoma HD39HDR supporting 301.4 inches, making both suitable for very large displays.
Largest supported diagonal projection size.
In the battle of Screen Size Maximum,
Optoma HD28HDR ◉ is
better than
Optoma HD39HDR ◉
, delivering
higher
0.6 inch
measurement.
Don’t keep it to yourself — be the first to react and review the
Screen Size Maximum on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Optoma HD28HDR has a Throw Ratio of 1.5–2.5+ (Long Throw), whereas Optoma HD39HDR offers a shorter throw ratio range of 1.12:1-1.47:1, giving the HD39HDR more flexibility in placement closer to the screen.
What is the throw ratio?
In the battle of Throw Ratio,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
21 score
measurement.
Based on community votes for Throw Ratio,
Optoma HD28HDR ◉ earned
1 votes,
more than
Optoma HD39HDR ◉,
which got 0 votes.
Who knows?
0Votes
Optoma HD28HDR
(Help us out by suggesting one!)
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Horizontal angle adjustment to correct image distortion.
Don’t keep it to yourself — be the first to react and review the
Keystone Correction Horizontal on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Digital Zoom Level
Useful zoom reaching :valx.
5
Optoma HD28HDR
0Votes
1.1x–1.5x (Moderate)
65
Optoma HD39HDR
0Votes
1.5x–2.0x (High)
Optoma HD28HDR
Digital zoom level is moderate, ranging between 1.1x–1.5x, allowing some flexibility in adjusting the image size without physically moving the projector.
Optoma HD39HDR
It features a Digital Zoom Level ranging from 1.5x to 2.0x, enabling users to adjust image size without physically moving the projector, useful for fine-tuning the image fit.
What is the digital zoom level?
In the battle of Digital Zoom Level,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
60 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Digital Zoom Level on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Minimum Throw Distance
What is the minimum throw distance?
3.94
ft
0Votes
3.3
ft
0Votes
Optoma HD39HDR
The minimum throw distance is 3.3 ft (1.01 m), which is the closest distance the projector can be placed to achieve a clear, focused image.
Closest usable distance between projector and screen.
In the battle of Minimum Throw Distance,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
higher
0.6 ft
measurement.
Don’t keep it to yourself — be the first to react and review the
Minimum Throw Distance on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Maximum Throw Distance
What is the maximum throw distance?
32.8
ft
0Votes
32.8
ft
0Votes
Optoma HD28HDR
The maximum throw distance is 32.8 ft (10 m), indicating the farthest recommended distance to the screen for a properly sized image.
Maximum distance at which the projector can achieve a proper image.
In the battle of Maximum Throw Distance,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
, delivering
equal
32.80 ft
measurement.
Don’t keep it to yourself — be the first to react and review the
Maximum Throw Distance on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Projection Alignment Type
What is the projection alignment type?
0
Optoma HD28HDR
0Votes
Front
35
Optoma HD39HDR
0Votes
Front
Optoma HD39HDR
The projector is designed for front projection only, meaning it is placed in front of the screen or surface for image casting.
Describes how the projector aligns with the screen.
In the battle of Projection Alignment Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
35 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Projection Alignment Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Keystone Correction Vertical
What is the vertical keystone correction?
40
degree
0Votes
40
degree
0Votes
Vertical angle adjustment to correct image distortion.
In the battle of Keystone Correction Vertical,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
, delivering
equal
40.00 degree
measurement.
Don’t keep it to yourself — be the first to react and review the
Keystone Correction Vertical on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Auto Keystone
Does this projector support auto keystone?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
Automatically corrects keystone distortion.
In the battle of Auto Keystone,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Auto Keystone on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Lens Shift Vertical
What is the vertical lens shift?
Who knows?
0Votes
Optoma HD28HDR
(Help us out by suggesting one!)
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Vertical lens movement for distortion-free positioning.
Don’t keep it to yourself — be the first to react and review the
Lens Shift Vertical on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Lens Shift Horizontal
What is the horizontal lens shift?
Who knows?
0Votes
Optoma HD28HDR
(Help us out by suggesting one!)
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Horizontal lens movement to fine-tune placement.
Don’t keep it to yourself — be the first to react and review the
Lens Shift Horizontal on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Optical Zoom Level
High-quality optical zoom at :valx.
0
Optoma HD28HDR
0Votes
1.1x (Entry)
55
Optoma HD39HDR
0Votes
1.2x–1.5x (Standard)
What is the optical zoom level?
In the battle of Optical Zoom Level,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
55 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Optical Zoom Level on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Optoma HD28HDR has an Aperture Size of 15.59 f-stop, contrasting with a smaller 2.43 f-stop on Optoma HD39HDR, indicating different lens light gathering capabilities.
Specifies the optical aperture size affecting brightness and depth.
In the battle of Aperture Size,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
higher
13.2 f-stop
measurement.
Don’t keep it to yourself — be the first to react and review the
Aperture Size on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Lens Replacement Compatibility is not available in either the Optoma HD28HDR or Optoma HD39HDR, so lens upgrades are unsupported.
Indicates whether the projector's lens can be replaced or upgraded.
In the battle of Lens Replacement Compatibility,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Lens Replacement Compatibility on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Neither Optoma HD28HDR nor Optoma HD39HDR feature Dustproof Lens Design, so lens protection against dust is similar for both.
Specifies whether the lens is designed to resist dust intrusion.
In the battle of Dustproof Lens Design,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Dustproof Lens Design on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Lens Coating Type
What is the lens coating type?
26
Optoma HD28HDR
0Votes
Anti-Reflective
83
Optoma HD39HDR
0Votes
Anti-Reflective
Optoma HD39HDR
Lens coating is anti-reflective, reducing light reflection to improve brightness and contrast while minimizing glare.
Defines special coatings that enhance optical performance.
In the battle of Lens Coating Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
57 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Lens Coating Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Auto Focus
Does this projector support auto focus?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
Optoma HD28HDR
Auto focus is not available, meaning focusing must be adjusted manually for a clear image.
Indicates whether the projector can automatically adjust focus.
In the battle of Auto Focus,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Auto Focus on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Lens Protection Cover
Does this projector include a lens protection cover?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
Optoma HD28HDR
The lens protection cover feature is not included, so the lens may be more exposed to dust and scratches without a protective cover.
Indicates whether the lens includes a physical protection cover.
In the battle of Lens Protection Cover,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Lens Protection Cover on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Manual Focus Range
What is the manual focus range?
1
Optoma HD28HDR
0Votes
Manual ring focus
45
Optoma HD39HDR
0Votes
Manual focus ring
Indicates the distance range manual focus can adjust for.
In the battle of Manual Focus Range,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
44 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Manual Focus Range on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Lens Motor Noise Level
What is the lens motor noise level?
0
dB
0Votes
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Measures noise generated during lens adjustments.
Don’t keep it to yourself — be the first to react and review the
Lens Motor Noise Level on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
The Light Source Power Output is 240 Watt for Optoma HD28HDR and slightly higher at 245 Watt for Optoma HD39HDR, which may contribute to brightness and performance differences.
Indicates the wattage of the light source, affecting brightness potential.
In the battle of Light Source Power Output,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
5.0 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Light Source Power Output on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
What is the light uniformity rating of this projector?
5
Optoma HD28HDR
0Votes
Medium
70
Optoma HD39HDR
0Votes
High
vs
Light Uniformity Rating
Optoma HD28HDR has a Medium Light Uniformity Rating, while Optoma HD39HDR rates as High, suggesting more consistent brightness across the image on the HD39HDR.
Indicates how evenly brightness is distributed across the screen.
In the battle of Light Uniformity Rating,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
65 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Light Uniformity Rating on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Optoma HD28HDR features Color Temperature options of Warm, Neutral, and Cool, whereas Optoma HD39HDR adds a Custom option, offering more color tuning flexibility.
Defines the visual warmth or coolness profile of the projected image.
In the battle of Color Temperature,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
33 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Color Temperature on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
The Warm-Up Time is the same 30 seconds for both Optoma HD28HDR and Optoma HD39HDR, providing equally quick readiness.
Time required for the projector to reach full brightness.
In the battle of Warm-Up Time,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
, delivering
equal
30.00 second
measurement.
Don’t keep it to yourself — be the first to react and review the
Warm-Up Time on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Light Source Lifetime Eco Mode
What is the light source lifetime in eco mode?
15,000
hour
0Votes
15,000
hour
0Votes
Optoma HD28HDR
Light source lifetime in eco mode is 15,000 hours, allowing for extended use while reducing power consumption and heat output.
Optoma HD39HDR
In eco mode, the light source lifetime is extended to 15,000 hours, which helps lower maintenance costs and extends projector usability.
Estimated lifespan of the light source in eco mode.
In the battle of Light Source Lifetime Eco Mode,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
, delivering
equal
15,000.00 hour
measurement.
Don’t keep it to yourself — be the first to react and review the
Light Source Lifetime Eco Mode on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Light Source Type
What is the light source type?
0
Optoma HD28HDR
0Votes
Lamp
25
Optoma HD39HDR
0Votes
Lamp
Optoma HD28HDR
The light source type is a lamp, which is traditional but requires periodic bulb replacement after its lifespan ends.
Defines the illumination technology powering the projector.
In the battle of Light Source Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
25 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Light Source Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Light Source Lifetime Normal Mode
What is the light source lifetime in normal mode?
4,000
hour
0Votes
4,000
hour
0Votes
Optoma HD39HDR
The lamp is expected to last for 4000 hours under normal usage conditions before requiring replacement.
Estimated lifespan in standard usage mode.
In the battle of Light Source Lifetime Normal Mode,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
, delivering
equal
4,000.00 hour
measurement.
Don’t keep it to yourself — be the first to react and review the
Light Source Lifetime Normal Mode on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Light Source Replaceability
Can the light source be replaced?
Yes
0Votes
Optoma HD28HDR
Yes
0Votes
Optoma HD39HDR
Optoma HD39HDR
This projector supports lamp replacement, allowing users to extend its use by swapping out the light source when it dims.
Indicates whether users can replace the light source.
In the battle of Light Source Replaceability,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
18 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Light Source Replaceability on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Cool-Down Time
What is the cool-down time?
0
second
0Votes
60
second
0Votes
Time required before the projector safely powers off.
In the battle of Cool-Down Time,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Cool-Down Time on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Light Flicker Control
Does this projector include light flicker control?
No
0Votes
Optoma HD28HDR
Yes
0Votes
Optoma HD39HDR
Indicates whether flicker reduction technology is implemented.
In the battle of Light Flicker Control,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Light Flicker Control on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
What color temperature presets does this projector offer?
21
Optoma HD28HDR
0Votes
Warm, Neutral, Cool
61
Optoma HD39HDR
0Votes
Warm, Neutral, Cool
vs
Color Temperature Presets
Both models offer Color Temperature Presets including Warm, Neutral, and Cool, indicating similar preset options for color warmth adjustments.
Preset visual warmth settings for different content.
In the battle of Color Temperature Presets,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Color Temperature Presets on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Both Optoma HD28HDR and Optoma HD39HDR use a 6x Color Wheel Speed for their DLP systems, so color processing speed matches.
Defines the rotational speed of the DLP color wheel, affecting color accuracy and rainbow artifact reduction.
In the battle of Color Wheel Speed (for DLP),
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Color Wheel Speed (for DLP) on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
What type of image scaling engine does this projector use?
0
Optoma HD28HDR
0Votes
Standard
35
Optoma HD39HDR
0Votes
Standard
vs
Image Scaling Engine Type
Both projectors use a Standard Image Scaling Engine Type, providing typical scaling performance for each.
Defines the scaling engine used to upscale lower-resolution content to the projector’s native resolution.
In the battle of Image Scaling Engine Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
35 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Image Scaling Engine Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Neither projector supports MEMC Mode, so motion estimation and frame interpolation features are absent in both.
Motion interpolation for smooth fast-action content.
In the battle of MEMC Mode,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
MEMC Mode on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Auto Color Correction
Does this projector have auto color correction?
No
0Votes
Optoma HD28HDR
Yes
0Votes
Optoma HD39HDR
Optoma HD39HDR
Auto color correction automatically adjusts color settings to maintain accurate and balanced image colors during use.
Automatically adjusts colors for the best image quality.
In the battle of Auto Color Correction,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Auto Color Correction on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
White Balance Control
Does this projector include white balance control?
Yes
0Votes
Optoma HD28HDR
Yes
0Votes
Optoma HD39HDR
Optoma HD28HDR
White Balance Control is available, which means the projector allows adjustment to achieve accurate color balance and reproduces natural colors on the screen.
Allows tuning of color balance for accurate whites.
In the battle of White Balance Control,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
18 score
measurement.
Don’t keep it to yourself — be the first to react and review the
White Balance Control on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Noise Reduction Type
What type of noise reduction does this projector use?
0
Optoma HD28HDR
0Votes
Standard
35
Optoma HD39HDR
0Votes
Standard
Optoma HD28HDR
Noise reduction type is standard, helping to reduce visual noise without advanced processing that might impact image quality.
Indicates the technique used to reduce visual noise and artifacts for a cleaner image.
In the battle of Noise Reduction Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
35 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Noise Reduction Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Image Processor Type
What is the image processor type?
0
Optoma HD28HDR
0Votes
Standard
25
Optoma HD39HDR
0Votes
Standard
Specifies the processing engine that handles color, scaling, and image optimization.
In the battle of Image Processor Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
25 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Image Processor Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Image Processing Bit Depth
What is the image processing bit depth?
10
bit
0Votes
10
bit
0Votes
Indicates color precision and gradient smoothness.
In the battle of Image Processing Bit Depth,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
, delivering
equal
10.00 bit
measurement.
Don’t keep it to yourself — be the first to react and review the
Image Processing Bit Depth on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Color Calibration Profiles
What color calibration profiles are available?
28
Optoma HD28HDR
0Votes
sRGB, Rec709, Cinema, Game
68
Optoma HD39HDR
0Votes
sRGB, Rec709
Predefined settings for accurate color reproduction.
In the battle of Color Calibration Profiles,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Color Calibration Profiles on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Gamma Adjustment Levels
How many gamma adjustment levels are available?
0
Optoma HD28HDR
0Votes
1.8,2.0,2.2,2.4
63
Optoma HD39HDR
0Votes
Multiple presets
Controls mid-tone brightness for accurate contrast.
In the battle of Gamma Adjustment Levels,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
63 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Gamma Adjustment Levels on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Black Level Enhancement
Does this projector include black level enhancement?
Yes
0Votes
Optoma HD28HDR
Yes
0Votes
Optoma HD39HDR
Deepens dark scenes for improved shadow detail.
In the battle of Black Level Enhancement,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
18 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Black Level Enhancement on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Who knows?
0Votes
Optoma HD28HDR
(Help us out by suggesting one!)
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Lists available preinstalled streaming services.
Don’t keep it to yourself — be the first to react and review the
Built-In Streaming Apps on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Who knows?
0Votes
Optoma HD28HDR
(Help us out by suggesting one!)
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Indicates the supported wireless frequency bands.
Don’t keep it to yourself — be the first to react and review the
Wi-Fi Band Support on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Smart Calibration
Does this projector support smart calibration?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
Optoma HD28HDR
Smart calibration is not supported, so manual calibration or external tools will be needed for color or image adjustments.
Indicates whether calibration can be optimized automatically or via app.
In the battle of Smart Calibration,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Smart Calibration on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Software Update Method
What is the software update method?
25
Optoma HD28HDR
0Votes
USB
65
Optoma HD39HDR
0Votes
USB
Optoma HD39HDR
Software updates can be performed via USB, allowing straightforward firmware upgrades through a USB flash drive.
Describes how firmware updates are applied.
In the battle of Software Update Method,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Software Update Method on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
On-Device Storage Capacity
What is the on-device storage capacity?
0
GB
0Votes
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Optoma HD28HDR
There is no on-device storage capacity, so media must come from external devices rather than local memory.
Amount of internal memory available for apps and media.
Don’t keep it to yourself — be the first to react and review the
On-Device Storage Capacity on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Operating System Type
What is the operating system type?
0
Optoma HD28HDR
0Votes
No OS
5
Optoma HD39HDR
0Votes
No OS
Specifies the software platform the projector runs on.
In the battle of Operating System Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
5 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Operating System Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
App Store Support
Does this projector support an app store?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
Indicates support for downloading apps directly to the projector.
In the battle of App Store Support,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
App Store Support on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
AI Auto Image Optimization
Does this projector include AI auto image optimization?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
Automatically enhances image settings using AI.
In the battle of AI Auto Image Optimization,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
AI Auto Image Optimization on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Wireless Casting
Does this projector support wireless casting?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
Indicates compatibility with casting protocols like Chromecast or AirPlay.
In the battle of Wireless Casting,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Wireless Casting on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Screen Mirroring Standard
What screen mirroring standard does this projector support?
Who knows?
0Votes
Optoma HD28HDR
(Help us out by suggesting one!)
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Specifies which standard is used for mirroring devices.
Don’t keep it to yourself — be the first to react and review the
Screen Mirroring Standard on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Bluetooth Version
What is the Bluetooth version?
Who knows?
0Votes
Optoma HD28HDR
(Help us out by suggesting one!)
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Indicates the Bluetooth protocol version for audio and accessories.
Don’t keep it to yourself — be the first to react and review the
Bluetooth Version on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Optoma HD28HDR offers 3 Watt Speaker Output Power compared to a stronger 10 Watt for Optoma HD39HDR, which may provide louder built-in sound on the latter.
Indicates total audio power from built-in speakers.
In the battle of Speaker Output Power,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
7.0 Watt
measurement.
Based on community votes for Speaker Output Power,
Optoma HD28HDR ◉ earned
0 votes,
less than
Optoma HD39HDR ◉,
which got 1 votes.
Does this projector support Bluetooth audio output?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
vs
Bluetooth Audio Output
Bluetooth Audio Output is not available on either Optoma HD28HDR or Optoma HD39HDR, limiting wireless audio output options.
Allows wireless output to speakers or headphones.
In the battle of Bluetooth Audio Output,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Bluetooth Audio Output on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
85
Optoma HD39HDR
0Votes
Quick Settings, Advanced Settings, Icon-Based Menu
vs
On-Screen Menu Features
On-Screen Menu Features on Optoma HD28HDR include Quick Settings and Advanced Settings, whereas Optoma HD39HDR adds Icon-Based Menu, offering a potentially more intuitive interface.
Describes navigational and functional features available inside the on-screen display (OSD) menu.
In the battle of On-Screen Menu Features,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
On-Screen Menu Features on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Menu Navigation Style differs, with Optoma HD28HDR using a List style and Optoma HD39HDR using an Icon-Based style, affecting user interface experience.
Defines how users navigate the on-screen interface.
In the battle of Menu Navigation Style,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
60 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Menu Navigation Style on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
vs
Input Switching Speed
Input Switching Speed is 3 seconds on Optoma HD28HDR, while not available for Optoma HD39HDR, so performance comparison is unclear.
Time required to change from one input to another.
Don’t keep it to yourself — be the first to react and review the
Input Switching Speed on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Custom Preset Modes
Does this projector allow custom preset modes?
Yes
0Votes
Optoma HD28HDR
Yes
0Votes
Optoma HD39HDR
Optoma HD39HDR
Custom preset modes are available, enabling users to save specific image settings for different viewing scenarios.
Indicates whether image or sound presets can be saved by the user.
In the battle of Custom Preset Modes,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
18 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Custom Preset Modes on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Control Panel Type
What is the control panel type?
0
Optoma HD28HDR
0Votes
Buttons
25
Optoma HD39HDR
0Votes
Buttons
Indicates the type of on-device control interface.
In the battle of Control Panel Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
25 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Control Panel Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Backlit Remote
Does this projector include a backlit remote?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
Indicates whether the remote supports backlighting for dark rooms.
In the battle of Backlit Remote,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Backlit Remote on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Programmable Buttons
Does this projector include programmable buttons?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
Determines whether the projector or remote includes assignable hotkeys.
In the battle of Programmable Buttons,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Programmable Buttons on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Indicator Light Controls
Does this projector support indicator light controls?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
Allows dimming or disabling LED indicator lights.
In the battle of Indicator Light Controls,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Indicator Light Controls on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Parental Control Features
Does this projector include parental control features?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
Indicates whether parental restrictions or PIN locks are available.
In the battle of Parental Control Features,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Parental Control Features on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
The Input Voltage Range is 100–240V AC for Optoma HD28HDR and specified as 100-240V for Optoma HD39HDR, effectively the same wide input range for both.
Supported voltage range for safe operation.
In the battle of Input Voltage Range,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
36 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Input Voltage Range on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Power Consumption in Normal Mode is 295 Watt for Optoma HD28HDR and higher at 325 Watt for Optoma HD39HDR, indicating the HD39HDR may use more power under normal use.
Average power usage while running at full performance.
In the battle of Power Consumption Normal Mode,
Optoma HD28HDR ◉ is
better than
Optoma HD39HDR ◉
, delivering
lower
30.0 Watt
measurement.
Based on community votes for Power Consumption Normal Mode,
Optoma HD28HDR ◉ earned
1 votes,
more than
Optoma HD39HDR ◉,
which got 0 votes.
Both projectors lack a Power Efficiency Rating, offering no efficiency certification for either.
Describes the energy efficiency certification.
In the battle of Power Efficiency Rating,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Power Efficiency Rating on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Power Consumption Eco Mode
What is the power consumption in eco mode?
215
Watt
0Votes
205
Watt
0Votes
Optoma HD28HDR
Power consumption in eco mode is lowered to 215 Watt, reducing energy use and heat generation during extended viewing.
Optoma HD39HDR
Power consumption is reduced to 205 Watts in eco mode, which helps save energy while maintaining satisfactory image brightness.
Reduced power usage when operating in eco mode.
In the battle of Power Consumption Eco Mode,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
higher
10.0 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Power Consumption Eco Mode on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Operating Power Frequency
What is the operating power frequency?
50
Hz
0Votes
50
Hz
0Votes
Optoma HD28HDR
The operating power frequency is 50 Hz, compatible with power standards in many regions.
Optoma HD39HDR
Operates at a power frequency of 50 Hz, suitable for electrical systems in most countries with this standard.
Indicates supported AC frequency.
In the battle of Operating Power Frequency,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
, delivering
equal
50.00 Hz
measurement.
Don’t keep it to yourself — be the first to react and review the
Operating Power Frequency on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Power Cord Length
What is the power cord length?
6
ft
0Votes
6
ft
0Votes
Optoma HD39HDR
The standard power cord length of 6 ft (1.83 m) allows flexible connection to power outlets.
Length of included power cable.
In the battle of Power Cord Length,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
, delivering
equal
6.00 ft
measurement.
Don’t keep it to yourself — be the first to react and review the
Power Cord Length on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Power Supply Type
What is the power supply type?
55
Optoma HD28HDR
0Votes
Internal
95
Optoma HD39HDR
0Votes
Internal
Indicates whether the power supply is built-in or external.
In the battle of Power Supply Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Power Supply Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Heat Output
What is the heat output?
1,000
BTU
0Votes
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Measures emitted heat during operation.
Don’t keep it to yourself — be the first to react and review the
Heat Output on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Thermal Control Technology
What thermal control technology does this projector use?
0
Optoma HD28HDR
0Votes
Standard Cooling
65
Optoma HD39HDR
0Votes
Advanced Cooling
Defines the system used to manage heat and maintain safe operating temperatures.
In the battle of Thermal Control Technology,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
65 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Thermal Control Technology on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Power-On Time
What is the power-on time?
30
second
0Votes
10
second
0Votes
Time required for the projector to turn on and display an image.
In the battle of Power-On Time,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
higher
20.0 second
measurement.
Don’t keep it to yourself — be the first to react and review the
Power-On Time on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
The depth dimension is 9.61 inches for Optoma HD28HDR and slightly smaller at 9.5 inches for Optoma HD39HDR, differences which likely have minimal practical impact.
Physical depth measurement.
In the battle of Depth,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
higher
0.1 inch
measurement.
Don’t keep it to yourself — be the first to react and review the
Depth on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Optoma HD28HDR supports Tabletop mounting only, whereas Optoma HD39HDR supports both Tabletop and Ceiling mounting, providing more installation flexibility for the HD39HDR.
Describes available mounting configurations.
In the battle of Mounting Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
43 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Mounting Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Is the projector compatible with ceiling mounting?
Yes
0Votes
Optoma HD28HDR
Yes
0Votes
Optoma HD39HDR
vs
Ceiling Mount Compatibility
Ceiling Mount Compatibility is present in both Optoma HD28HDR and Optoma HD39HDR, allowing ceiling installation.
Indicates whether the projector supports ceiling mounting.
In the battle of Ceiling Mount Compatibility,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
18 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Ceiling Mount Compatibility on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Height
What is the height of the projector?
4.25
inch
0Votes
4.5
inch
0Votes
Optoma HD28HDR
Projector height is 4.25 inch (10.8 cm), which combined with width and depth defines the size footprint for installation or placement.
Optoma HD39HDR
The height of the projector is 4.5 inch (11.43 cm), which along with other dimensions helps in understanding how it fits into different spaces.
Vertical size of the projector body.
In the battle of Height,
Optoma HD28HDR ◉ is
better than
Optoma HD39HDR ◉
, delivering
lower
0.3 inch
measurement.
Don’t keep it to yourself — be the first to react and review the
Height on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Body Ventilation Design
What is the body ventilation design of this projector?
30
Optoma HD28HDR
0Votes
Side Vent
70
Optoma HD39HDR
0Votes
Side Vent
Optoma HD28HDR
Body ventilation design uses side vents to dissipate heat, helping maintain optimal operating temperature and reliability.
Optoma HD39HDR
Side venting helps maintain internal temperatures and prolong projector lifespan by improving heat dissipation.
Describes the airflow layout used to cool the internal components.
In the battle of Body Ventilation Design,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Body Ventilation Design on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Weight
What is the weight of the projector?
5.51
lbs
0Votes
7.7
lbs
0Votes
Optoma HD28HDR
Projector weight is 5.51 lbs (2.5 kg), making it relatively lightweight and portable for its class.
Total weight of the projector.
In the battle of Weight,
Optoma HD28HDR ◉ is
better than
Optoma HD39HDR ◉
, delivering
lower
2.2 lbs
measurement.
Don’t keep it to yourself — be the first to react and review the
Weight on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Package Width
What is the package width?
14
inch
0Votes
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Optoma HD28HDR
The package width is 14 inch (35.56 cm), indicating the horizontal dimension of the packaging box.
Width of the boxed projector.
Don’t keep it to yourself — be the first to react and review the
Package Width on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Package Height
What is the package height?
6
inch
0Votes
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Optoma HD28HDR
The package height is 6 inch (15.24 cm), indicating the vertical size dimension of the packaging. This helps to know the space needed for storage or transport.
Height of the boxed projector.
Don’t keep it to yourself — be the first to react and review the
Package Height on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Cooling Fan Size
What is the cooling fan size?
2.5
inch
0Votes
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Optoma HD28HDR
The cooling fan size is 2.5 inch (6.35 cm), affecting noise levels and thermal management efficiency.
Fan diameter contributing to cooling performance.
Don’t keep it to yourself — be the first to react and review the
Cooling Fan Size on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Folded Width
What is the folded width?
Who knows?
0Votes
Optoma HD28HDR
(Help us out by suggesting one!)
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Width when the projector or components are folded (if applicable).
Don’t keep it to yourself — be the first to react and review the
Folded Width on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Folded Depth
What is the folded depth?
Who knows?
0Votes
Optoma HD28HDR
(Help us out by suggesting one!)
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Folded depth measurement.
Don’t keep it to yourself — be the first to react and review the
Folded Depth on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Folded Height
What is the folded height?
Who knows?
0Votes
Optoma HD28HDR
(Help us out by suggesting one!)
Who knows?
0Votes
Optoma HD39HDR
(Help us out by suggesting one!)
Folded height measurement.
Don’t keep it to yourself — be the first to react and review the
Folded Height on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Tripod Mount Compatibility
Is the projector tripod compatible?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
Indicates whether the projector can attach to tripods.
In the battle of Tripod Mount Compatibility,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Tripod Mount Compatibility on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Carry Handle
Does the projector include a carry handle?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
Indicates whether the projector includes a handle for portability.
In the battle of Carry Handle,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Carry Handle on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Chassis Reinforcement Type
What type of chassis reinforcement is used?
0
Optoma HD28HDR
0Votes
Standard Reinforcement
35
Optoma HD39HDR
0Votes
Standard Reinforcement
Indicates extra structural strengthening applied to the projector chassis.
In the battle of Chassis Reinforcement Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
35 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Chassis Reinforcement Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Operating Humidity Range is 10–85% RH for Optoma HD28HDR and ≤85% for Optoma HD39HDR, showing similar humidity operation capabilities.
Acceptable humidity levels for proper operation.
In the battle of Operating Humidity Range,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
20 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Operating Humidity Range on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Dust Resistance Rating is Basic for Optoma HD28HDR but None for Optoma HD39HDR, suggesting slightly better dust protection on the HD28HDR.
Indicates how well the projector resists dust intrusion.
In the battle of Dust Resistance Rating,
Optoma HD28HDR ◉ is
better than
Optoma HD39HDR ◉
, delivering
higher
5 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Dust Resistance Rating on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
The Eco Mode Power Reduction Percentage is 27% for Optoma HD28HDR and 30.5% for Optoma HD39HDR, with the HD39HDR providing slightly better power savings in eco mode.
Amount of power saved when using eco mode.
In the battle of Eco Mode Power Reduction Percentage,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
3.5 %
measurement.
Don’t keep it to yourself — be the first to react and review the
Eco Mode Power Reduction Percentage on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
The minimum Operating Temperature is 41°F for both Optoma HD28HDR and Optoma HD39HDR, indicating similar environmental operating limits.
Minimum safe temperature at which the projector can operate.
In the battle of Operating Temperature Minimum,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
, delivering
equal
41.00 °F
measurement.
Don’t keep it to yourself — be the first to react and review the
Operating Temperature Minimum on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Storage Humidity Range is 5–95% RH for Optoma HD28HDR and 10–85% RH for Optoma HD39HDR, so the HD28HDR may tolerate a wider humidity range for storage.
Humidity levels tolerated during storage.
In the battle of Storage Humidity Range,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
35 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Storage Humidity Range on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Storage Temperature Minimum
What is the minimum storage temperature?
-4
°F
0Votes
-4
°F
0Votes
Optoma HD28HDR
The minimum storage temperature is -4 °F (-20 °C), denoting the lowest safe temperature for storing the device without damage.
Optoma HD39HDR
The minimum storage temperature is -4 °F (-20 °C), defining the lowest temperature the device can safely be stored in.
Minimum safe temperature for storing the projector.
In the battle of Storage Temperature Minimum,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
, delivering
equal
-4.00 °F
measurement.
Don’t keep it to yourself — be the first to react and review the
Storage Temperature Minimum on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Storage Temperature Maximum
What is the maximum storage temperature?
140
°F
0Votes
140
°F
0Votes
Optoma HD28HDR
The maximum storage temperature is 140 °F (60 °C). Store the projector under these conditions to avoid damage.
Maximum temperature the projector can handle when stored.
In the battle of Storage Temperature Maximum,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
, delivering
equal
140.00 °F
measurement.
Don’t keep it to yourself — be the first to react and review the
Storage Temperature Maximum on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Light Spill Control
Does this projector have light spill control?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
Optoma HD28HDR
Light spill control is not provided, so some light may leak from the projector body, which can affect perceived contrast in dark environments.
Indicates measures used to contain unwanted light scatter.
In the battle of Light Spill Control,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Light Spill Control on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Operating Temperature Maximum
What is the maximum operating temperature?
104
°F
0Votes
104
°F
0Votes
Maximum safe temperature for normal operation.
In the battle of Operating Temperature Maximum,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
, delivering
equal
104.00 °F
measurement.
Don’t keep it to yourself — be the first to react and review the
Operating Temperature Maximum on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Outdoor Use
Does this projector support outdoor use?
No
0Votes
Optoma HD28HDR
No
0Votes
Optoma HD39HDR
Specifies whether the projector is designed for outdoor environments.
In the battle of Outdoor Use,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Outdoor Use on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Both projectors use AAA batteries for their Remote Control Battery Type, a common and easily replaceable type.
Specifies the battery type required for the remote.
In the battle of Remote Control Battery Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
25 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Remote Control Battery Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Service Availability Region is Global for both Optoma HD28HDR and Optoma HD39HDR, ensuring worldwide support.
Specifies the regions where service and repairs are supported.
In the battle of Service Availability Region,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Service Availability Region on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Power Cable Type is 3-Prong for both models, standard for safety and grounding.
Describes the style of the included power cable.
In the battle of Power Cable Type,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Power Cable Type on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Included Accessories
What accessories are included with the projector?
15
Optoma HD28HDR
0Votes
Remote, Power Cable
55
Optoma HD39HDR
0Votes
Remote, Power Cable
Optoma HD28HDR
Included accessories are a remote control and power cable, providing essential tools to operate and power the projector out of the box.
Optoma HD39HDR
The included accessories are a Remote and Power Cable, providing essential tools for operation and convenience right out of the box.
Lists the accessories that come in the box.
In the battle of Included Accessories,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Included Accessories on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Replacement Lamp Model
What replacement lamp model is supported?
15
Optoma HD28HDR
0Votes
Long-Life Lamp
15
Optoma HD39HDR
0Votes
BL-FU245A
Optoma HD28HDR
The projector uses a long-life lamp model, which typically offers extended usage hours before replacement.
Optoma HD39HDR
The replacement lamp model is BL-FU245A, which is specific to this projector to maintain brightness and image quality over time.
Defines the type or class of replacement lamp or light module compatible with the projector.
In the battle of Replacement Lamp Model,
Optoma HD28HDR ◉ is
same as
Optoma HD39HDR ◉
.
Don’t keep it to yourself — be the first to react and review the
Replacement Lamp Model on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Warranty Duration
What is the warranty duration?
0
Optoma HD28HDR
0Votes
1 year
25
Optoma HD39HDR
0Votes
1 year
The length of the included manufacturer warranty.
In the battle of Warranty Duration,
Optoma HD28HDR ◉ is
worse than
Optoma HD39HDR ◉
, delivering
lower
25 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Warranty Duration on Optoma HD28HDR ◉
vs Optoma HD39HDR ◉ and help others decide!
Surveys
Because hot takes deserve votes.
Performance
How would you rate the performance of this projector in terms of brightness and picture quality?
Supermod
Moderator
Recaptor
0
Cartling
0
Cartling
