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84 Highlights 46 Differences 9 Reactions 0 Likes
Optoma HD20 vs Optoma HD28HDR: 84 Highlights & 46 Differences — So, Which Projector Actually Works Better
Let's break down brightness and image quality differences between these popular projectors. We ran a full comparison of Optoma HD20 and Optoma HD28HDR — 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 27 points higher
Noise Reduction Type: Standard Indicates the technique used to reduce visual noise and artifacts for a cleaner image. with 27 points higher
Color Wheel Speed (for DLP): 4x Defines the rotational speed of the DLP color wheel, affecting color accuracy and rainbow artifact reduction. with 12 points higher
Optoma HD20 vs HD28HDR: Home Theater Projectors in Close Quarters
Both the Optoma HD20 and the Optoma HD28HDR are DLP projectors tailored for home theater environments, sporting native 1080p resolutions and glass lenses with manual focus systems. While they share similar long-throw capabilities, screen size options up to about 300 inches, and identical warm-up times, their core distinctions emerge in brightness capacity, imaging chip size, and connectivity. The HD20 uses a larger 0.65" imaging chip with a more modest 1700 lumens output ideal for darker rooms, featuring legacy ports like RS-232 and VGA for broader compatibility. In contrast, the HD28HDR offers a smaller 0.47" chip boosted by a balanced sharpness enhancement and a striking 3600 lumens brightness output, making it a better fit for moderately lit spaces. However, it drops some older connectivity options.
Bright Features That Make the Optoma HD20 Shine
The HD20 carries a compact physical footprint with a slim width of just 3.82 inches and an adaptable mounting system supporting both ceiling and tabletop setups. Its 0.65-inch DLP chip delivers native 1080p resolution without frame interpolation or pixel shifting, ensuring a straightforward, clean image optimized for dimly lit rooms thanks to its 1700 lumens brightness. The projector boasts a versatile set of legacy ports, including RS-232, VGA, and AV composite inputs, catering well to legacy devices and setups. Its moderate 260W power usage, combined with a 20% eco mode efficiency, makes for an energy-conscious choice. Additionally, the projector provides an advanced on-screen menu system paired with a backlit remote control, simplifying navigation in low-light settings.
Optoma HD28HDR: Punching Brightness and Modern Essentials
The HD28HDR stands out with a significantly higher brightness of 3600 lumens, making it perfect for use in environments with some degree of ambient light. Its smaller 0.47" imaging chip is paired with a 2-4 balanced sharpness enhancement technology, and the faster 6x color wheel speed helps produce richer, crisper colors. Though this projector is physically wider (12.44 inches) with a more constrained tabletop mounting, it is still compatible with ceiling installations. The HD28HDR foregoes legacy ports, focusing instead on current standards,3.5mm audio out, and built-in 3W speakers, improving audio delivery.
Power requirements are slightly higher at 295W, but it features a more aggressive 27% eco mode power saving. The HD28HDR also boasts an extended warranty option, adding peace of mind for buyers seeking longevity in their investment. Its enhanced, quick, and advanced setting menus paired with a standard remote optimize usability without overwhelming the user.
Quick Take
The Optoma HD20 excels with its extensive legacy connectivity options and suitability for darker rooms, all wrapped up in a compact, energy-efficient design. Meanwhile, the Optoma HD28HDR dazzles with its intense 3600 lumens brightness and sharper image processing, perfect for vibrant, color-rich projections even in moderately lit spaces.
Bottom Line
For movie buffs and gamers craving bright, vivid visuals with enhanced sharpness, the Optoma HD28HDR is the superior pick despite its lack of older connection ports. Those seeking a more budget-friendly projector with legacy support and lower power consumption should consider the Optoma HD20. In the end, your environment and device compatibility needs will shape the best fit.
Verdict
Winner: Optoma HD28HDR - It delivers stronger brightness, better color performance, and modern usability features, making it a great choice for home theater enthusiasts in varied lighting conditions.
Runner-up: Optoma HD20 - Offers valued legacy connectivity and energy savings, suitable for simpler setups and darker rooms, but trails with lower brightness and fewer advanced features.
Side by side. The numbers. The features. No drama.
Not just a spec list — this is a side-by-side projectors comparison between Optoma HD20 and Optoma HD28HDR, packed with useful details, standout features, and what users actually say. See which projector wins your vote.
Optoma HD20 uses a 0.65 inch Imaging Chip Size, whereas the Optoma HD28HDR uses a smaller 0.47 inch Imaging Chip Size, indicating a difference in their chip dimensions which might affect image characteristics.
Specifies the size of the imaging chip. Larger chips generally improve performance.
In the battle of Imaging Chip Size, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 0.2 inch measurement.
Based on community votes for Imaging Chip Size, Optoma HD20 ◉ earned 1 votes, more than Optoma HD28HDR ◉, which got 0 votes.
The Product Type for Optoma HD20 is Home Theater, while for Optoma HD28HDR, it is Home Theater and Gaming, making the HD28HDR more versatile for gaming purposes.
Defines the general classification of this projector.
In the battle of Product Type, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 34 score measurement.
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What is the projection technology type of this projector?
77 Optoma HD20 0Votes DLP
45 Optoma HD28HDR 0Votes DLP
vs Projection Technology Type
The Projection Technology Type for both the Optoma HD20 and Optoma HD28HDR is DLP, showing consistency in their display method.
Identifies the core imaging technology used.
In the battle of Projection Technology Type, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 32 score measurement.
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Imaging Chip Type
What is the imaging chip type of this projector?
77 Optoma HD20 0Votes DLP Chip
45 Optoma HD28HDR 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.
Indicates the chip architecture that forms the image.
In the battle of Imaging Chip Type, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 32 score measurement.
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Release Year
What is the release year of this projector?
6 Optoma HD20 0Votes 2009
Who knows? 0Votes Optoma HD28HDR (Help us out by suggesting one!)
Shows the year the projector model was released.
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Country of Manufacture
What is the country of manufacture for this projector?
77 Optoma HD20 0Votes China
45 Optoma HD28HDR 0Votes China
Indicates where the projector was manufactured.
In the battle of Country of Manufacture, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 32 score measurement.
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Intended Usage Type
What is the intended usage type of this projector?
67 Optoma HD20 0Votes Home Theater
38 Optoma HD28HDR 0Votes Home Theater, Gaming
Describes the ideal application for this projector.
In the battle of Intended Usage Type, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 29 score measurement.
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The Brightness Output for the Optoma HD20 is 1700 lumens, whereas Optoma HD28HDR offers a brighter output of 3600 lumens, making the HD28HDR more suitable for well-lit environments.
Indicates overall light output for visibility in ambient light.
In the battle of Brightness Output, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering lower 1,900.0 lumen measurement.
Based on community votes for Brightness Output, Optoma HD20 ◉ earned 0 votes, less than Optoma HD28HDR ◉, which got 1 votes.
Optoma HD20 does not specify a Sharpness Enhancement Type, while Optoma HD28HDR features a 2–4 (Balanced) sharpness enhancement, potentially improving image clarity on the HD28HDR.
What is the sharpness enhancement level?
In the battle of Sharpness Enhancement Type, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering lower 15 score measurement.
Based on community votes for Sharpness Enhancement Type, Optoma HD20 ◉ earned 0 votes, less than Optoma HD28HDR ◉, which got 1 votes.
Neither the Optoma HD20 nor the Optoma HD28HDR supports Frame Interpolation, so neither offers frame smoothing for motion enhancement.
Allows smoother motion for sports and fast scenes.
In the battle of Frame Interpolation, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
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Maximum Supported Resolution
What is the maximum supported resolution of this projector?
27 Optoma HD20 0Votes 1080p
45 Optoma HD28HDR 0Votes 4K
Optoma HD20
Supports full HD 1080p resolution, delivering clear and sharp images suitable for a quality home theater experience.
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 HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering lower 18 score measurement.
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Peak ANSI Lumens
What is the peak ANSI lumens of this projector?
1,700 lumen 0Votes
3,600 lumen 0Votes
Optoma HD20
Peak ANSI lumens is 1700, indicating a bright and vivid image suitable for home theater environments.
Optoma HD28HDR
Brightness output is 3600 lumen, providing a bright image suitable for rooms with some ambient light.
Industry-standard brightness measurement using ANSI method.
In the battle of Peak ANSI Lumens, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering lower 1,900.0 lumen measurement.
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Color Gamut Coverage
What is the color gamut coverage?
100 % 0Votes
100 % 0Votes
Optoma HD20
The color gamut coverage reaches 100%, ensuring vivid and accurate color reproduction.
Optoma HD28HDR
Color gamut coverage is 100%, indicating the projector can accurately reproduce the full range of colors within the specified color space.
Indicates percent coverage of color spaces such as Rec.709 or DCI-P3.
In the battle of Color Gamut Coverage, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ , delivering equal 100.00 % measurement.
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Dynamic Lumens
What is the dynamic lumens rating?
1,700 lumen 0Votes
3,600 lumen 0Votes
Optoma HD20
The dynamic lumens rating is 1700, reflecting the brightness delivered under typical viewing conditions.
Measures boosted brightness in enhanced dynamic modes.
In the battle of Dynamic Lumens, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering lower 1,900.0 lumen measurement.
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Color Bit Depth
What is the color bit depth?
8 bit 0Votes
8 bit 0Votes
Optoma HD20
The color bit depth is 8 bit, allowing for a broad spectrum of color gradations.
Determines how finely color gradients are rendered.
In the battle of Color Bit Depth, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ , delivering equal 8.00 bit measurement.
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Refresh Rate
What is the refresh rate?
60 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 HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering lower 60.0 Hz measurement.
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Contrast Ratio
What is the contrast ratio of this projector?
0 Optoma HD20 0Votes 4,000:1
0 Optoma HD28HDR 0Votes 50,000:1
Represents the difference between the darkest black and brightest white produced by the projector.
In the battle of Contrast Ratio, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
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Dynamic Contrast Ratio
Deep dynamic contrast at :val.
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
0 Optoma HD28HDR 0Votes 50,000:1–200,000:1
What is the dynamic contrast ratio?
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HDR Format Support
What HDR formats does this projector support?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
15 Optoma HD28HDR 0Votes HDR10
Specifies which HDR formats the projector can display.
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HDR Peak Brightness
What is the HDR peak brightness?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
3,600 lumen 0Votes
How bright the projector can go during HDR highlights.
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Motion Processing Type
Smooth motion processing with level :val.
0 Optoma HD20 0Votes Not Specified
5 Optoma HD28HDR 0Votes 2–5 (Standard)
What is the motion processing level?
In the battle of Motion Processing Type, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering lower 5 score measurement.
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Optoma HD20 supports a maximum screen size of 300 inches, while Optoma HD28HDR supports slightly larger screens up to 302 inches, providing a marginally bigger viewing option.
Largest supported diagonal projection size.
In the battle of Screen Size Maximum, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering lower 2.0 inch measurement.
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Does this projector support ultra short throw projection?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
vs Ultra Short Throw
Both Optoma HD20 and Optoma HD28HDR do not support Ultra Short Throw projection, so they require normal throw distances.
Indicates whether the projector can project large images at extremely short distances.
In the battle of Ultra Short Throw, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
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Maximum Throw Distance
What is the maximum throw distance?
32.8 ft 0Votes
32.8 ft 0Votes
Optoma HD20
Maximum throw distance is 32.8 feet (approximately 10 meters), providing flexibility for large venue projections.
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 HD20 ◉ is same as Optoma HD28HDR ◉ , delivering equal 32.80 ft measurement.
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Minimum Throw Distance
What is the minimum throw distance?
5.2 ft 0Votes
3.94 ft 0Votes
Optoma HD20
Minimum throw distance is 5.2 feet (approximately 1.58 meters), allowing for placement fairly close to the projection surface.
Closest usable distance between projector and screen.
In the battle of Minimum Throw Distance, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering higher 1.3 ft measurement.
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Digital Zoom Level
Useful zoom reaching :valx.
27 Optoma HD20 0Votes 1.0x–1.1x (Minimal)
5 Optoma HD28HDR 0Votes 1.1x–1.5x (Moderate)
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.
What is the digital zoom level?
In the battle of Digital Zoom Level, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 22 score measurement.
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Keystone Correction Vertical
What is the vertical keystone correction?
5 degree 0Votes
40 degree 0Votes
Vertical angle adjustment to correct image distortion.
In the battle of Keystone Correction Vertical, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering lower 35.0 degree measurement.
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Keystone Correction Horizontal
What is the horizontal keystone correction?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
Who knows? 0Votes Optoma HD28HDR (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 HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Auto Keystone
Does this projector support auto keystone?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
Automatically corrects keystone distortion.
In the battle of Auto Keystone, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
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Lens Shift Vertical
What is the vertical lens shift?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
Who knows? 0Votes Optoma HD28HDR (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 HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Lens Shift Horizontal
What is the horizontal lens shift?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
Who knows? 0Votes Optoma HD28HDR (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 HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Optical Zoom Level
High-quality optical zoom at :valx.
47 Optoma HD20 0Votes 1.2x–1.5x (Standard)
0 Optoma HD28HDR 0Votes 1.1x (Entry)
What is the optical zoom level?
In the battle of Optical Zoom Level, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 47 score measurement.
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Screen Size Minimum
What is the minimum supported screen size?
40 inch 0Votes
36 inch 0Votes
Smallest supported diagonal projection size.
In the battle of Screen Size Minimum, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering higher 4.0 inch measurement.
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Projection Alignment Type
What is the projection alignment type?
27 Optoma HD20 0Votes Front
0 Optoma HD28HDR 0Votes Front
Describes how the projector aligns with the screen.
In the battle of Projection Alignment Type, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 27 score measurement.
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Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
15.59 f-stop 0Votes
vs Aperture Size
Aperture Size is not available for Optoma HD20, while Optoma HD28HDR has an aperture size of 15.59 f-stop, which might affect light admission characteristics.
Specifies the optical aperture size affecting brightness and depth.
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Lens Replacement Compatibility is not available on both Optoma HD20 and Optoma HD28HDR, indicating that lens swapping is not supported.
Indicates whether the projector's lens can be replaced or upgraded.
In the battle of Lens Replacement Compatibility, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
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Optoma HD20 has a Light Source Power Output of 180 Watts, whereas Optoma HD28HDR outputs 240 Watts, indicating the HD28HDR has a more powerful light source.
Indicates the wattage of the light source, affecting brightness potential.
In the battle of Light Source Power Output, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering lower 60.0 Watt measurement.
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Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
30 % 0Votes
vs Light Efficiency
Light Efficiency value is not available for Optoma HD20, but Optoma HD28HDR has a light efficiency of 30%, which could indicate better energy use in its light engine.
Measures how effectively the light source converts power into brightness.
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What is the color temperature setting of this projector?
10 Optoma HD20 0Votes Warm, Neutral, Cool
0 Optoma HD28HDR 0Votes Warm, Neutral, Cool
vs Color Temperature
Both Optoma HD20 and Optoma HD28HDR offer Color Temperature options of Warm, Neutral, and Cool, allowing similar color tuning flexibility.
Defines the visual warmth or coolness profile of the projected image.
In the battle of Color Temperature, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 10 score measurement.
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Light Source Lifetime Eco Mode
What is the light source lifetime in eco mode?
4,000 hour 0Votes
15,000 hour 0Votes
Optoma HD20
Light source lifetime in eco mode extends to 4000 hours, which helps increase the overall lamp life.
Optoma HD28HDR
Light source lifetime in eco mode is 15,000 hours, allowing for extended use while reducing power consumption and heat output.
Estimated lifespan of the light source in eco mode.
In the battle of Light Source Lifetime Eco Mode, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering lower 11,000.0 hour measurement.
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Light Source Type
What is the light source type?
17 Optoma HD20 0Votes Lamp
0 Optoma HD28HDR 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 HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 17 score measurement.
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Light Source Lifetime Normal Mode
What is the light source lifetime in normal mode?
3,000 hour 0Votes
4,000 hour 0Votes
Optoma HD20
The normal mode light source lifetime is about 3000 hours, which is typical for lamp-based projectors.
Estimated lifespan in standard usage mode.
In the battle of Light Source Lifetime Normal Mode, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering lower 1,000.0 hour measurement.
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Cool-Down Time
What is the cool-down time?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
0 second 0Votes
Time required before the projector safely powers off.
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Light Source Replaceability
Can the light source be replaced?
Yes 0Votes Optoma HD20
Yes 0Votes Optoma HD28HDR
Indicates whether users can replace the light source.
In the battle of Light Source Replaceability, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 14 score measurement.
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Light Flicker Control
Does this projector include light flicker control?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
Indicates whether flicker reduction technology is implemented.
In the battle of Light Flicker Control, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
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The Color Wheel Speed for the Optoma HD20 is 4x, while the Optoma HD28HDR uses a faster 6x speed, potentially contributing to reduced rainbow effect in the HD28HDR.
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 HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 12 score measurement.
Based on community votes for Color Wheel Speed (for DLP), Optoma HD20 ◉ earned 0 votes, less than Optoma HD28HDR ◉, which got 1 votes.
What color temperature presets does this projector offer?
53 Optoma HD20 0Votes Warm, Neutral, Cool
21 Optoma HD28HDR 0Votes Warm, Neutral, Cool
vs Color Temperature Presets
Both projectors have the same Color Temperature Presets of Warm, Neutral, and Cool, enabling consistent color temperature adjustments.
Preset visual warmth settings for different content.
In the battle of Color Temperature Presets, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 32 score measurement.
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What type of image scaling engine does this projector use?
27 Optoma HD20 0Votes Standard
0 Optoma HD28HDR 0Votes Standard
vs Image Scaling Engine Type
Both Optoma HD20 and Optoma HD28HDR employ a Standard Image Scaling Engine Type, indicating similar image processing capabilities.
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 HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 27 score measurement.
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Neither the Optoma HD20 nor Optoma HD28HDR supports MEMC Mode, so no motion interpolation is available.
Motion interpolation for smooth fast-action content.
In the battle of MEMC Mode, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
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White Balance Control
Does this projector include white balance control?
Yes 0Votes Optoma HD20
Yes 0Votes Optoma HD28HDR
Optoma HD20
White balance control is included, which allows finer tuning for more accurate color reproduction.
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 HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 14 score measurement.
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Black Level Enhancement
Does this projector include black level enhancement?
Yes 0Votes Optoma HD20
Yes 0Votes Optoma HD28HDR
Optoma HD20
Black level enhancement is supported, contributing to better contrast and deeper blacks in the displayed image.
Deepens dark scenes for improved shadow detail.
In the battle of Black Level Enhancement, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 14 score measurement.
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Noise Reduction Type
What type of noise reduction does this projector use?
27 Optoma HD20 0Votes Standard
0 Optoma HD28HDR 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 HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 27 score measurement.
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Image Processor Type
What is the image processor type?
17 Optoma HD20 0Votes Standard
0 Optoma HD28HDR 0Votes Standard
Specifies the processing engine that handles color, scaling, and image optimization.
In the battle of Image Processor Type, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 17 score measurement.
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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 HD20 ◉ is same as Optoma HD28HDR ◉ , delivering equal 10.00 bit measurement.
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Color Calibration Profiles
What color calibration profiles are available?
65 Optoma HD20 0Votes Rec709, Cinema
28 Optoma HD28HDR 0Votes sRGB, Rec709, Cinema, Game
Predefined settings for accurate color reproduction.
In the battle of Color Calibration Profiles, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 37 score measurement.
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Auto Color Correction
Does this projector have auto color correction?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
Automatically adjusts colors for the best image quality.
In the battle of Auto Color Correction, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
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Gamma Adjustment Levels
How many gamma adjustment levels are available?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
0 Optoma HD28HDR 0Votes 1.8,2.0,2.2,2.4
Controls mid-tone brightness for accurate contrast.
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Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
Who knows? 0Votes Optoma HD28HDR (Help us out by suggesting one!)
Indicates the Bluetooth protocol version for audio and accessories.
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Smart Calibration
Does this projector support smart calibration?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
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 HD20 ◉ is same as Optoma HD28HDR ◉ .
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On-Device Storage Capacity
What is the on-device storage capacity?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
0 GB 0Votes
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.
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Operating System Type
What is the operating system type?
0 Optoma HD20 0Votes No OS
0 Optoma HD28HDR 0Votes No OS
Specifies the software platform the projector runs on.
In the battle of Operating System Type, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
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App Store Support
Does this projector support an app store?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
Indicates support for downloading apps directly to the projector.
In the battle of App Store Support, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
Don’t keep it to yourself — be the first to react and review the App Store Support on Optoma HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Built-In Streaming Apps
What built-in streaming apps are available?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
Who knows? 0Votes Optoma HD28HDR (Help us out by suggesting one!)
Lists available preinstalled streaming services.
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AI Auto Image Optimization
Does this projector include AI auto image optimization?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
Automatically enhances image settings using AI.
In the battle of AI Auto Image Optimization, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
Don’t keep it to yourself — be the first to react and review the AI Auto Image Optimization on Optoma HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Wireless Casting
Does this projector support wireless casting?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
Indicates compatibility with casting protocols like Chromecast or AirPlay.
In the battle of Wireless Casting, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
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Screen Mirroring Standard
What screen mirroring standard does this projector support?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
Who knows? 0Votes Optoma HD28HDR (Help us out by suggesting one!)
Specifies which standard is used for mirroring devices.
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Wi-Fi Band Support
What Wi-Fi bands does this projector support?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
Who knows? 0Votes Optoma HD28HDR (Help us out by suggesting one!)
Indicates the supported wireless frequency bands.
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Software Update Method
What is the software update method?
57 Optoma HD20 0Votes USB
25 Optoma HD28HDR 0Votes USB
Describes how firmware updates are applied.
In the battle of Software Update Method, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 32 score measurement.
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The Speaker Output Power is 2 Watts for Optoma HD20 and slightly higher at 3 Watts for Optoma HD28HDR, offering a marginally more powerful built-in audio on the HD28HDR.
Indicates total audio power from built-in speakers.
In the battle of Speaker Output Power, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering lower 1.0 Watt measurement.
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Remote Control Type is Backlit for Optoma HD20, enhancing usability in dark rooms, whereas Optoma HD28HDR has a Standard remote control without backlighting.
Defines the style and capability of the included remote.
In the battle of Remote Control Type, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 47 score measurement.
Based on community votes for Remote Control Type, Optoma HD20 ◉ earned 1 votes, more than Optoma HD28HDR ◉, which got 0 votes.
Optoma HD20 offers Advanced Settings for On-Screen Menu Features, while Optoma HD28HDR adds Quick Settings along with Advanced Settings, providing more convenient menu options on the HD28HDR.
Describes navigational and functional features available inside the on-screen display (OSD) menu.
In the battle of On-Screen Menu Features, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 37 score measurement.
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Input Switching Speed is 3 seconds on both Optoma HD20 and Optoma HD28HDR, indicating the same rapid input transition time.
Time required to change from one input to another.
In the battle of Input Switching Speed, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ , delivering equal 3.00 second measurement.
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Custom Preset Modes
Does this projector allow custom preset modes?
Yes 0Votes Optoma HD20
Yes 0Votes Optoma HD28HDR
Optoma HD20
Custom preset modes are available, allowing users to tailor image settings to their preference for a better viewing experience.
Indicates whether image or sound presets can be saved by the user.
In the battle of Custom Preset Modes, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 14 score measurement.
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Control Panel Type
What is the control panel type?
17 Optoma HD20 0Votes Buttons
0 Optoma HD28HDR 0Votes Buttons
Indicates the type of on-device control interface.
In the battle of Control Panel Type, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 17 score measurement.
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Backlit Remote
Does this projector include a backlit remote?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
Indicates whether the remote supports backlighting for dark rooms.
In the battle of Backlit Remote, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
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Programmable Buttons
Does this projector include programmable buttons?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
Determines whether the projector or remote includes assignable hotkeys.
In the battle of Programmable Buttons, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
Don’t keep it to yourself — be the first to react and review the Programmable Buttons on Optoma HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Indicator Light Controls
Does this projector support indicator light controls?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
Allows dimming or disabling LED indicator lights.
In the battle of Indicator Light Controls, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
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Parental Control Features
Does this projector include parental control features?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
Indicates whether parental restrictions or PIN locks are available.
In the battle of Parental Control Features, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
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Power Consumption in Normal Mode is 260 Watts for Optoma HD20 and higher at 295 Watts for Optoma HD28HDR, so the HD20 is slightly more energy efficient during operation.
Average power usage while running at full performance.
In the battle of Power Consumption Normal Mode, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering lower 35.0 Watt measurement.
Based on community votes for Power Consumption Normal Mode, Optoma HD20 ◉ earned 1 votes, more than Optoma HD28HDR ◉, which got 0 votes.
Input Voltage Range for Optoma HD20 is 100–240V, while for Optoma HD28HDR it is specified as 100–240V AC, indicating essentially the same voltage compatibility.
Supported voltage range for safe operation.
In the battle of Input Voltage Range, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 28 score measurement.
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Both projectors have no Power Efficiency Rating, meaning no official efficiency certification is provided.
Describes the energy efficiency certification.
In the battle of Power Efficiency Rating, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
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Power Consumption Eco Mode
What is the power consumption in eco mode?
210 Watt 0Votes
215 Watt 0Votes
Optoma HD20
In eco mode, power consumption is reduced to 210 Watt, improving energy efficiency during operation.
Optoma HD28HDR
Power consumption in eco mode is lowered to 215 Watt, reducing energy use and heat generation during extended viewing.
Reduced power usage when operating in eco mode.
In the battle of Power Consumption Eco Mode, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering lower 5.0 Watt measurement.
Don’t keep it to yourself — be the first to react and review the Power Consumption Eco Mode on Optoma HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Operating Power Frequency
What is the operating power frequency?
50 Hz 0Votes
50 Hz 0Votes
Optoma HD20
Operates at a power frequency of 50 Hz, compatible with regional electrical standards.
Optoma HD28HDR
The operating power frequency is 50 Hz, compatible with power standards in many regions.
Indicates supported AC frequency.
In the battle of Operating Power Frequency, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ , delivering equal 50.00 Hz measurement.
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Thermal Control Technology
What thermal control technology does this projector use?
27 Optoma HD20 0Votes Standard Cooling
0 Optoma HD28HDR 0Votes Standard Cooling
Optoma HD20
The projector uses standard cooling technology, which effectively manages heat during use for reliable performance.
Defines the system used to manage heat and maintain safe operating temperatures.
In the battle of Thermal Control Technology, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 27 score measurement.
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Power-On Time
What is the power-on time?
30 second 0Votes
30 second 0Votes
Optoma HD20
The power-on time is about 30 seconds, providing a fairly quick startup.
Time required for the projector to turn on and display an image.
In the battle of Power-On Time, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ , delivering equal 30.00 second measurement.
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Power Supply Type
What is the power supply type?
87 Optoma HD20 0Votes Internal
55 Optoma HD28HDR 0Votes Internal
Indicates whether the power supply is built-in or external.
In the battle of Power Supply Type, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 32 score measurement.
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Power Cord Length
What is the power cord length?
6 ft 0Votes
6 ft 0Votes
Length of included power cable.
In the battle of Power Cord Length, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ , delivering equal 6.00 ft measurement.
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Heat Output
What is the heat output?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
1,000 BTU 0Votes
Measures emitted heat during operation.
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The Depth dimension of Optoma HD20 is 12.76 inches, significantly deeper than Optoma HD28HDR's 9.61 inches, indicating a more compact design in HD28HDR.
Physical depth measurement.
In the battle of Depth, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering higher 3.2 inch measurement.
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Is the projector compatible with ceiling mounting?
Yes 0Votes Optoma HD20
Yes 0Votes Optoma HD28HDR
vs Ceiling Mount Compatibility
Ceiling Mount Compatibility is available for both Optoma HD20 and Optoma HD28HDR, so both can be mounted on ceilings if desired.
Indicates whether the projector supports ceiling mounting.
In the battle of Ceiling Mount Compatibility, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 14 score measurement.
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Height
What is the height of the projector?
9.21 inch 0Votes
4.25 inch 0Votes
Optoma HD20
Height dimensions are 9.21 inch (approximately 23.40 cm), making the unit compact and easy to accommodate.
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.
Vertical size of the projector body.
In the battle of Height, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering higher 5.0 inch measurement.
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Weight
What is the weight of the projector?
6.4 lbs 0Votes
5.51 lbs 0Votes
Optoma HD20
The projector weighs about 6.4 lbs (approximately 2.90 kg), making it relatively lightweight and portable.
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 HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering higher 0.9 lbs measurement.
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Body Ventilation Design
What is the body ventilation design of this projector?
62 Optoma HD20 0Votes Side Vent
30 Optoma HD28HDR 0Votes Side Vent
Optoma HD20
The projector's body ventilation is designed with side vents to efficiently dissipate heat and maintain a stable operating temperature.
Optoma HD28HDR
Body ventilation design uses side vents to dissipate heat, helping maintain optimal operating temperature and reliability.
Describes the airflow layout used to cool the internal components.
In the battle of Body Ventilation Design, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 32 score measurement.
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Package Width
What is the package width?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
14 inch 0Votes
Optoma HD28HDR
The package width is 14 inch (35.56 cm), indicating the horizontal dimension of the packaging box.
Width of the boxed projector.
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Package Height
What is the package height?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
6 inch 0Votes
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.
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Cooling Fan Size
What is the cooling fan size?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
2.5 inch 0Votes
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.
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Folded Width
What is the folded width?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
Who knows? 0Votes Optoma HD28HDR (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 HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Folded Depth
What is the folded depth?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
Who knows? 0Votes Optoma HD28HDR (Help us out by suggesting one!)
Folded depth measurement.
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Folded Height
What is the folded height?
Who knows? 0Votes Optoma HD20 (Help us out by suggesting one!)
Who knows? 0Votes Optoma HD28HDR (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 HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Tripod Mount Compatibility
Is the projector tripod compatible?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
Indicates whether the projector can attach to tripods.
In the battle of Tripod Mount Compatibility, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
Don’t keep it to yourself — be the first to react and review the Tripod Mount Compatibility on Optoma HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Carry Handle
Does the projector include a carry handle?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
Indicates whether the projector includes a handle for portability.
In the battle of Carry Handle, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
Don’t keep it to yourself — be the first to react and review the Carry Handle on Optoma HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Chassis Reinforcement Type
What type of chassis reinforcement is used?
27 Optoma HD20 0Votes Standard Reinforcement
0 Optoma HD28HDR 0Votes Standard Reinforcement
Indicates extra structural strengthening applied to the projector chassis.
In the battle of Chassis Reinforcement Type, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 27 score measurement.
Don’t keep it to yourself — be the first to react and review the Chassis Reinforcement Type on Optoma HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Operating Humidity Range is 10–85% for Optoma HD20 and slightly specified as 10–85% RH for Optoma HD28HDR, indicating comparably broad operating humidity tolerances.
Acceptable humidity levels for proper operation.
In the battle of Operating Humidity Range, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 27 score measurement.
Don’t keep it to yourself — be the first to react and review the Operating Humidity Range on Optoma HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Operating Temperature Minimum is 41°F for both Optoma HD20 and Optoma HD28HDR, showing they operate safely in similar temperature conditions.
Minimum safe temperature at which the projector can operate.
In the battle of Operating Temperature Minimum, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ , 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 HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Storage Humidity Range is 10–85% for Optoma HD20 and a wider 5–95% RH for Optoma HD28HDR, which allows the HD28HDR to be stored in more humid environments.
Humidity levels tolerated during storage.
In the battle of Storage Humidity Range, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 22 score measurement.
Don’t keep it to yourself — be the first to react and review the Storage Humidity Range on Optoma HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Eco Mode Power Reduction Percentage is 20% on Optoma HD20 and higher at 27% on Optoma HD28HDR, making HD28HDR slightly more energy efficient in eco mode.
Amount of power saved when using eco mode.
In the battle of Eco Mode Power Reduction Percentage, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering lower 7.0 % measurement.
Don’t keep it to yourself — be the first to react and review the Eco Mode Power Reduction Percentage on Optoma HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Storage Temperature Minimum
What is the minimum storage temperature?
-4 °F 0Votes
-4 °F 0Votes
Optoma HD20
This projector can be safely stored at temperatures as low as -4°F (approximately -20°C), which helps in varied environmental conditions.
Optoma HD28HDR
The minimum storage temperature is -4 °F (-20 °C), denoting the lowest safe temperature for storing the device without damage.
Minimum safe temperature for storing the projector.
In the battle of Storage Temperature Minimum, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ , 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 HD20 ◉ vs Optoma HD28HDR ◉ and help others decide!
Storage Temperature Maximum
What is the maximum storage temperature?
140 °F 0Votes
140 °F 0Votes
Optoma HD20
The maximum storage temperature can reach 140°F (approximately 60°C), suitable for various storage environments.
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 HD20 ◉ is same as Optoma HD28HDR ◉ , delivering equal 140.00 °F measurement.
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Light Spill Control
Does this projector have light spill control?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
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 HD20 ◉ is same as Optoma HD28HDR ◉ .
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Operating Temperature Maximum
What is the maximum operating temperature?
95 °F 0Votes
104 °F 0Votes
Maximum safe temperature for normal operation.
In the battle of Operating Temperature Maximum, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ , delivering lower 9.0 °F measurement.
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Outdoor Use
Does this projector support outdoor use?
No 0Votes Optoma HD20
No 0Votes Optoma HD28HDR
Specifies whether the projector is designed for outdoor environments.
In the battle of Outdoor Use, Optoma HD20 ◉ is same as Optoma HD28HDR ◉ .
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Does this projector support extended warranty options?
No 0Votes Optoma HD20
Yes 1Votes Optoma HD28HDR
vs Extended Warranty
Extended Warranty is not offered with Optoma HD20, whereas Optoma HD28HDR includes an Extended Warranty option, adding extra protection with the HD28HDR.
Indicates whether users can purchase extended warranty coverage.
In the battle of Extended Warranty, Optoma HD20 ◉ is worse than Optoma HD28HDR ◉ .
Based on community votes for Extended Warranty, Optoma HD20 ◉ earned 0 votes, less than Optoma HD28HDR ◉, which got 1 votes.
Both Optoma HD20 and Optoma HD28HDR use AAA batteries for their remote controls, ensuring similar ease of battery replacement.
Specifies the battery type required for the remote.
In the battle of Remote Control Battery Type, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 17 score measurement.
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Service Availability Region for both Optoma HD20 and Optoma HD28HDR is Global, ensuring worldwide service support.
Specifies the regions where service and repairs are supported.
In the battle of Service Availability Region, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 32 score measurement.
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Included Accessories
What accessories are included with the projector?
47 Optoma HD20 0Votes Remote, Power Cable
15 Optoma HD28HDR 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.
Lists the accessories that come in the box.
In the battle of Included Accessories, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 32 score measurement.
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Replacement Lamp Model
What replacement lamp model is supported?
37 Optoma HD20 0Votes Standard Lamp
15 Optoma HD28HDR 0Votes Long-Life Lamp
Optoma HD28HDR
The projector uses a long-life lamp model, which typically offers extended usage hours before replacement.
Defines the type or class of replacement lamp or light module compatible with the projector.
In the battle of Replacement Lamp Model, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 22 score measurement.
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Warranty Duration
What is the warranty duration?
17 Optoma HD20 0Votes 1 year
0 Optoma HD28HDR 0Votes 1 year
The length of the included manufacturer warranty.
In the battle of Warranty Duration, Optoma HD20 ◉ is better than Optoma HD28HDR ◉ , delivering higher 17 score measurement.
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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 
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