OVERALL
SPECS
VS AVERAGE
REVIEWS
ALTERNATIVES

Optoma GT4000UHD Review | 85 Data compared

double-arrow
  • Avg. price in UK: ~£3,460
  • Avg. price in US: ~$4,500
  • ANSI lumens: 4000
  • Native panel resolution: 1920x1080
  • Throw ratio: 0.25:1

Optoma GT4000UHD review. Compare 85 technical specifications and user reviews to see how it ranks among projectors and if it is worth buying.

6.4

Overall score

What it is: An overall evaluation of the projector's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best projectors on the market.

Score components:

90.0%

6.5

Technical Score

10.0%

5.6

User score

Good
6.5

Technical Score

What it is: An assessment of the projector's technical performance, covering eight key areas: image quality, brightness, contrast, connectivity, gaming features, smart features, audio, and design.

When it matters: When you want to compare projectors based on technical performance and available features.

Score components:

42.0%

8.1

Image Quality

22.0%

3.9

Projection & Lens

12.0%

6.8

HDMI & Gaming

10.0%

5.1

Audio & Features

8.0%

5.1

Connectivity

6.0%

8.2

Design & Power

Good
5.6

User score

What it is: A rating that combines user reviews and the total number of reviews received by the projector.

When it matters: When you want to know how a projector performs in real use and how reliable it remains over time according to user feedback.

Score components:

70.0%

7.2

User reviews

30.0%

1.8

Popularity

User score:
United Kingdom
amazon
3.6
(5)

(Reviews last updated: June 2026)

Good
  • 9.6
    Gaming

    Score components:

    35.0%

    10

    Input lag

    25.0%

    10

    Refresh rate

    20.0%

    9.3

    Output Resolution

    10.0%

    10

    HDR10 support

    10.0%

    7.5

    Audio output power

  • 4.8
    Portable

    Score components:

    35.0%

    7.9

    Weight

    20.0%

    ?

    Has A Built-In Speaker

    15.0%

    1.0

    Bluetooth connectivity

    15.0%

    1.0

    Wi-Fi connectivity

    15.0%

    1.0

    Smart TV features

  • 7.4
    Home theatre

    Score components:

    30.0%

    9.3

    Output Resolution

    25.0%

    10

    HDR10 support

    20.0%

    1.0

    Dolby Vision support

    15.0%

    10

    ANSI lumens

    10.0%

    4.5

    Audible noise

  • optoma-gt4000uhd
  • optoma-gt4000uhd
  • optoma-gt4000uhd
  • optoma-gt4000uhd
  • optoma-gt4000uhd
  • optoma-gt4000uhd
  • optoma-gt4000uhd
  • optoma-gt4000uhd
  • optoma-gt4000uhd
  • optoma-gt4000uhd
  • optoma-gt4000uhd
  • optoma-gt4000uhd
  • optoma-gt4000uhd
  • optoma-gt4000uhd
optoma-gt4000uhd
optoma-gt4000uhd
optoma-gt4000uhd
optoma-gt4000uhd
optoma-gt4000uhd
optoma-gt4000uhd
optoma-gt4000uhd
optoma-gt4000uhd
optoma-gt4000uhd
optoma-gt4000uhd
optoma-gt4000uhd
optoma-gt4000uhd
optoma-gt4000uhd
optoma-gt4000uhd

Best prices in UK

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Optoma GT4000UHD is a high-performance 4K UHD ultra-short throw laser projector designed for space-constrained home cinemas and gaming setups, featuring a 0.25:1 throw ratio that produces a 100-inch image from just 12 inches away. It delivers a bright 4,000 ANSI lumens output and a 500,000:1 dynamic contrast ratio using a DuraCore laser source rated for up to 30,000 hours of maintenance-free operation. Key pros include exceptional responsiveness for gamers with a 4.3ms input lag at 240Hz (1080p) and 16.9ms at 4K/60Hz, support for HDR10 and HLG, and flexible installation via four-corner correction and 360-degree orientation. Notable cons include the lack of HDMI 2.1 ports, meaning it cannot support 4K at 120Hz for the latest consoles, and a relatively modest built-in 15W mono speaker that may necessitate external audio for a true cinematic experience.

Technical Specifications of Optoma GT4000UHD

Technical Score

What it is: An assessment of the projector's technical performance, covering eight key areas: image quality, brightness, contrast, connectivity, gaming features, smart features, audio, and design.

When it matters: When you want to compare projectors based on technical performance and available features.

Score components:

42.0%

8.1

Image Quality

22.0%

3.9

Projection & Lens

12.0%

6.8

HDMI & Gaming

10.0%

5.1

Audio & Features

8.0%

5.1

Connectivity

6.0%

8.2

Design & Power

6.5
Optoma GT4000UHD has a technical score of 6.5 points, which is higher than 70% of projectors.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the projector.

When it matters: When you want to know how a projector performs in real use and how reliable it remains over time according to user feedback.

Score components:

70.0%

7.2

User reviews

30.0%

1.8

Popularity

User score:
United Kingdom
amazon
3.6
(5)

(Reviews last updated: June 2026)

5.6
Optoma GT4000UHD has a user score of 5.58 points, which is lower than 96.8% of projectors.
Popularity
What it is: An indicator based on the number of reviews received by the projector.
When it matters: When you prefer to buy a product chosen and reviewed by many other consumers.
1.8
Optoma GT4000UHD has a popularity of 1.8 points, which is lower than 50.5% of products in this category.
Ratio quality/price

What it is: An indicator that combines the projector's overall rating with its cost.

When it matters: When you are looking for a projector with a good balance between quality and price.

Score components:

60.0%

6.4

Overall score

40.0%

1.0

Price

4.8
Optoma GT4000UHD has a quality-to-price ratio of 4.8 points, which is lower than 87.6% of products in this category.
ANSI lumens
What it is: Brightness output measured in ANSI lumens.
When it matters: When you watch with ambient light or on a large screen, higher brightness matters.

Importance: HIGH

4,000
Optoma GT4000UHD reaches 4000 ANSI lumens, brighter than 85.9% of projectors and equal to 5.2% of projectors.
Contrast ratio
What it is: Ratio of brightest white to darkest black displayed by the projector.
When it matters: When you watch movies in a dark room, stronger contrast matters.

Importance: HIGH

700,000:1
Optoma GT4000UHD has a contrast ratio of 700000:1, higher than 84.5% of projectors.
Dynamic contrast ratio.
Native panel resolution
What it is: Native resolution of the display panel or imaging device.
When it matters: When picture sharpness matters enough that you want to know the projector's true native imaging resolution, not just supported input formats.

Importance: HIGH

1920x1080
Optoma GT4000UHD uses a native resolution of 1920x1080, higher than 26.2% of projectors and equal to 60.1% of projectors.
Output Resolution
What it is: The resolution the projector can actually display through its imaging system.
When it matters: When you want to know the actual image detail the projector can put on screen rather than just the source format it accepts.

Importance: HIGH

3840x2160
Optoma GT4000UHD supports output resolution up to 3840x2160, higher than 69.1% of projectors and equal to 26.1% of projectors.
Via XPR pixel shifting.
Projection technology
What it is: Projection imaging technology used by the projector.
When it matters: When color character, contrast behavior, and overall image personality matter before you compare brightness alone.

Importance: MEDIUM

DLP
Show more
Throw ratio
What it is: Ratio between projection distance and image width.
When it matters: When room size and screen size have to match properly instead of guessing whether the projector will fit the space.

Importance: MEDIUM

0.25:1
Min throw distance
What it is: Minimum distance required between projector and screen.
When it matters: When room depth is limited and you still need a large image from a short placement distance.

Importance: MEDIUM

0.28 m
Optoma GT4000UHD needs a minimum throw distance of 0.28 m, shorter than 95.6% of projectors.
Max projection size
What it is: Maximum supported image size for projection, measured diagonally.
When it matters: When you want a cinema-size picture, maximum projection size matters.

Importance: MEDIUM

150 inch
Optoma GT4000UHD supports projection sizes up to 150 inch, smaller than 67.7% of projectors and equal to 10% of projectors.
Zoom ratio
What it is: Optical zoom capability expressed as a ratio.
When it matters: When projector placement is not ideal and you need optical zoom to frame the image correctly.

Importance: MEDIUM

N/A
Motorized zoom
What it is: Motorized control of the optical zoom function.
When it matters: When the projector position is fixed but screen size or framing still needs to be adjusted from a distance.

Importance: LOW

no
Optoma GT4000UHD does not have motorized zoom. 16.3% of projectors have motorized zoom.
Show more
Input lag
What it is: Time delay between input signal and displayed image, measured in milliseconds.
When it matters: When gaming responsiveness matters and you want controls to feel more immediate on fast titles.

Importance: MEDIUM

4.3 ms
Optoma GT4000UHD has input lag of 4.3 ms, lower than 93% of projectors.
At 1080P/240Hz.
Auto low latency mode (ALLM)
What it is: Automatically reduces input lag when gaming.
When it matters: When you play fast games, lower latency matters.

Importance: LOW

no
Optoma GT4000UHD does not support ALLM. 20.3% of projectors support ALLM.
Variable refresh rate (VRR)
What it is: Support for variable refresh rate to reduce screen tearing.
When it matters: When gaming matters and you want the projector to handle variable frame rates with less tearing or stutter.

Importance: LOW

no
Optoma GT4000UHD does not support VRR. 1.9% of projectors support VRR.
HDMI version
What it is: Version of the HDMI standard supported.
When it matters: When source devices push newer HDMI features, refresh rates, or bandwidth levels that older ports may limit.

Importance: LOW

2.0
Optoma GT4000UHD supports HDMI 2.0, more modern than 45.5% of projectors and equal to 36.7% of projectors.
Max HDMI bandwidth
What it is: Maximum bandwidth supported by HDMI inputs, measured in Gbps.
When it matters: When newer consoles, gaming PCs, or media boxes need more HDMI throughput than older projectors can handle.

Importance: LOW

18 Gbps
Optoma GT4000UHD supports HDMI bandwidth up to 18 Gbps, higher than 48.1% of projectors and equal to 40% of projectors.
Show more
N. of HDMI ports
What it is: Number of available HDMI input ports.
When it matters: When you need a console, streamer, set-top box, and another source connected at the same time without swapping cables.

Importance: LOW

2
Optoma GT4000UHD has 2 HDMI port/s, more than 45.5% of projectors and equal to 47% of projectors.
Wi-Fi connectivity
What it is: Support for Wi-Fi network connectivity.
When it matters: When the projector should handle network features, updates, or streaming functions without needing wired Ethernet only.

Importance: LOW

no
Optoma GT4000UHD does not support Wi-Fi. 52.7% of projectors support Wi-Fi.
Wi-Fi version
What it is: Supported Wi-Fi standard version.
When it matters: When wireless stability and throughput matter for streaming, updates, or projector ecosystem features.

Importance: LOW

N/A
Bluetooth connectivity
What it is: Support for Bluetooth wireless connectivity.
When it matters: When you plan to pair wireless speakers, headphones, remotes, or other accessories directly with the projector.

Importance: LOW

no
Optoma GT4000UHD does not support Bluetooth. 50% of projectors support Bluetooth.
Bluetooth version
What it is: Supported Bluetooth version.
When it matters: When wireless accessory compatibility and connection quality matter beyond Bluetooth being a simple checkbox.

Importance: LOW

N/A
Show more
Smart TV features
What it is: Includes built-in Smart TV functions or operating system.
When it matters: When you prefer built-in apps and streaming convenience instead of adding an external media stick or box.

Importance: LOW

no
Optoma GT4000UHD does not have smart TV features. 43.8% of projectors have smart TV features.
Operating system
What it is: The built-in software platform that runs the projector interface, streaming apps, and smart features.
When it matters: When you care about which apps are available, how modern the smart interface feels, and whether the projector includes a built-in streaming platform.

Importance: LOW

none
Android OS

Importance: MEDIUM

no
Dedicated smartphone app
What it is: Availability of a dedicated smartphone control app.
When it matters: When you want setup, input switching, or basic control handled from your phone without always reaching for a remote.

Importance: LOW

?
Remote control
What it is: Comes with a dedicated remote control for operation.
When it matters: When you want easier everyday control without extra gear, built-in convenience features matter.

Importance: LOW

yes
Optoma GT4000UHD includes a remote control. 1.6% of projectors include a remote control.
Show more
Light source type
What it is: Type of light source used by the projector.
When it matters: When maintenance expectations, startup behavior, brightness stability, and long-term running costs all matter in the buying decision.

Importance: LOW

laser
Optoma GT4000UHD uses laser light source technology, more advanced than 74% of projectors and equal to 26% of projectors.
Laser Light Source
What it is: Whether the projector uses a laser light source instead of a traditional lamp.
When it matters: When lower maintenance, faster startup, and a lamp-free light engine matter over the long term.

Importance: LOW

yes
Optoma GT4000UHD uses a laser light source. 72% of projectors use a laser light source.
Lamp life
What it is: Expected operational lifespan of the lamp in standard mode, measured in hours.
When it matters: When you care about running costs and maintenance intervals, light-source lifespan matters.

Importance: LOW

30,000 hours
Optoma GT4000UHD offers lamp life of 30000 hours, shorter than 68.9% of projectors and equal to 25.4% of projectors.
Laser light source life.
Lamp life (eco mode)
What it is: Expected operational lifespan of the lamp in eco mode, measured in hours.
When it matters: When you care about running costs and maintenance intervals, light-source lifespan matters.

Importance: LOW

30,000 hours
Optoma GT4000UHD offers eco-mode lamp life of 30000 hours, shorter than 59.6% of projectors and equal to 35.6% of projectors.
Operating power consumption
What it is: Average power consumption during normal operation.
When it matters: When electricity use and heat output matter because the projector runs for long sessions or frequent daily use.

Importance: LOW

250 W
Optoma GT4000UHD uses 250 W of power, more than 53.6% of projectors and equal to 1.3% of projectors.
Typical power draw.
Show more

Optoma GT4000UHD vs the average projector

  • 81.8% higher brightness
    Optoma GT4000UHD has higher ANSI lumens than the average projector (4,000 vs 2,200). The average projector has 2,200 ANSI lumens.
    What it is: Brightness output measured in ANSI lumens.
    When it matters: When you watch with ambient light or on a large screen, higher brightness matters.

    Importance: HIGH

    Optoma GT4000UHD has higher ANSI lumens than the average projector (4,000 vs 2,200). The average projector has 2,200 ANSI lumens.4,000 vs 2,200
  • Higher contrast ratio
    Optoma GT4000UHD has a higher contrast ratio than the average projector (700000:1 vs 10000:1). The average projector has 10000:1 of contrast ratio.
    Dynamic contrast ratio.
    What it is: Ratio of brightest white to darkest black displayed by the projector.
    When it matters: When you watch movies in a dark room, stronger contrast matters.

    Importance: HIGH

    Optoma GT4000UHD has a higher contrast ratio than the average projector (700000:1 vs 10000:1). The average projector has 10000:1 of contrast ratio.700,000:1 vs 10,000:1
  • Higher output resolution
    Optoma GT4000UHD supports a higher output resolution than the average projector (3840x2160 vs 1920x1080). The average projector outputs at 1920x1080 resolution.
    Via XPR pixel shifting.
    What it is: The resolution the projector can actually display through its imaging system.
    When it matters: When you want to know the actual image detail the projector can put on screen rather than just the source format it accepts.

    Importance: HIGH

    Optoma GT4000UHD supports a higher output resolution than the average projector (3840x2160 vs 1920x1080). The average projector outputs at 1920x1080 resolution.3840x2160 vs 1920x1080
  • 2.82x higher refresh rate
    Optoma GT4000UHD has a higher refresh rate than the average projector (240 Hz vs 85 Hz). The average projector has 85 Hz of refresh rate.
    What it is: Number of screen refreshes per second, measured in hertz.
    When it matters: When motion clarity matters for gaming, sports, or fast-moving video instead of slower cinematic content only.

    Importance: MEDIUM

    Optoma GT4000UHD has a higher refresh rate than the average projector (240 Hz vs 85 Hz). The average projector has 85 Hz of refresh rate.240 Hz vs 85 Hz
  • Supports pixel shifting
    Optoma GT4000UHD supports pixel shifting, while the average projector does not. 28.4% of projectors support pixel shifting.
    Via XPR technology.
    What it is: Uses pixel shifting to increase perceived image resolution.
    When it matters: When you want more perceived detail than the native panel alone would provide, especially on bigger screens.

    Importance: LOW

    Optoma GT4000UHD supports pixel shifting, while the average projector does not. 28.4% of projectors support pixel shifting.
  • Supports HDMI ARC
    Optoma GT4000UHD supports HDMI ARC, while the average projector does not. 36.1% of projectors support HDMI ARC.
    Via eARC on HDMI 2.
    What it is: Support for HDMI ARC to send audio to external devices.
    When it matters: When you use a soundbar, receiver, or speakers, audio output options matter.

    Importance: LOW

    Optoma GT4000UHD supports HDMI ARC, while the average projector does not. 36.1% of projectors support HDMI ARC.
  • 0.78 m shorter throw distance
    Optoma GT4000UHD has a lower throw distance than the average projector (0.3 m vs 1.06 m). The average projector has 1.06 m of throw distance.
    What it is: Minimum distance required between projector and screen.
    When it matters: When room depth is limited and you still need a large image from a short placement distance.

    Importance: MEDIUM

    Optoma GT4000UHD has a lower throw distance than the average projector (0.3 m vs 1.06 m). The average projector has 1.06 m of throw distance.0.28 m vs 1.06 m
  • 22.7 ms Low input lag
    Optoma GT4000UHD has a lower input lag than the average projector (4.3 ms vs 27 ms). The average projector has 27 ms of input lag.
    At 1080P/240Hz.
    What it is: Time delay between input signal and displayed image, measured in milliseconds.
    When it matters: When gaming responsiveness matters and you want controls to feel more immediate on fast titles.

    Importance: MEDIUM

    Optoma GT4000UHD has a lower input lag than the average projector (4.3 ms vs 27 ms). The average projector has 27 ms of input lag.4.3 ms vs 27 ms
  • 81.8% higher brightness
    Optoma GT4000UHD has higher ANSI lumens than the average projector (4,000 vs 2,200). The average projector has 2,200 ANSI lumens.
  • Higher contrast ratio
    Optoma GT4000UHD has a higher contrast ratio than the average projector (700000:1 vs 10000:1). The average projector has 10000:1 of contrast ratio.
  • Higher output resolution
    Optoma GT4000UHD supports a higher output resolution than the average projector (3840x2160 vs 1920x1080). The average projector outputs at 1920x1080 resolution.
  • 2.82x higher refresh rate
    Optoma GT4000UHD has a higher refresh rate than the average projector (240 Hz vs 85 Hz). The average projector has 85 Hz of refresh rate.
  • Supports pixel shifting
    Optoma GT4000UHD supports pixel shifting, while the average projector does not. 28.4% of projectors support pixel shifting.
  • Supports HLG
    Optoma GT4000UHD supports HLG, while the average projector does not. 42.7% of projectors support HLG.
  • 0.78 m shorter throw distance
    Optoma GT4000UHD has a lower throw distance than the average projector (0.3 m vs 1.06 m). The average projector has 1.06 m of throw distance.
  • 22.7 ms Low input lag
    Optoma GT4000UHD has a lower input lag than the average projector (4.3 ms vs 27 ms). The average projector has 27 ms of input lag.
  • Supports frame interpolation
    Optoma GT4000UHD supports frame interpolation, while the average projector does not. 39.9% of projectors support frame interpolation.
  • Supports HDMI ARC
    Optoma GT4000UHD supports HDMI ARC, while the average projector does not. 36.1% of projectors support HDMI ARC.
  • 1 more RJ45 ports
    Optoma GT4000UHD has more RJ45 ports than the average projector (1 vs 0). The average projector has 0 RJ45 ports.
  • Includes VGA
    Optoma GT4000UHD includes VGA input, while the average projector does not. 43.1% of projectors include VGA input.
  • 50% stronger audio output
    Optoma GT4000UHD has a higher audio output power than the average projector (15 W vs 10 W). The average projector has 10 W of audio output power.
  • Uses laser light source
    Optoma GT4000UHD uses a laser light source, while the average projector does not. 28.1% of projectors use a laser light source.
  • 10,000 hours longer lamp life
    Optoma GT4000UHD has a higher lamp life than the average projector (30,000 hours vs 20,000 hours). The average projector has 20,000 hours of lamp life.
  • 10,000 hours longer eco lamp life
    Optoma GT4000UHD has a higher lamp life in eco mode than the average projector (30,000 hours vs 20,000 hours). The average projector has 20,000 hours of lamp life in eco mode.

Total
Image Quality
Projection & Lens
HDMI & Gaming
Connectivity
Audio & Features
Design & Power
  • 2 bit lower color depth
    Optoma GT4000UHD has a lower color depth than the average projector (8 bit vs 10 bit). The average projector has 10 bit of color depth.
  • 100 inch smaller projection size
    Optoma GT4000UHD has a lower projection size than the average projector (150 inch vs 250 inch). The average projector has 250 inch of projection size.
  • 25 degrees less vertical keystone correction
    Optoma GT4000UHD offers less vertical keystone correction than the average projector (5 degrees degrees vs 30 degrees degrees). The average projector offers 30 degrees degrees of vertical keystone correction.
  • 25 degrees less horizontal keystone correction
    Optoma GT4000UHD offers less horizontal keystone correction than the average projector (5 degrees degrees vs 30 degrees degrees). The average projector offers 30 degrees degrees of horizontal keystone correction.
  • Limited HDMI format
    Optoma GT4000UHD supports a less capable max HDMI input format than the average projector (4K/60Hz vs 4K/120Hz). The average projector supports a max HDMI input format of 4K/120Hz.
  • No Wi-Fi support
    Optoma GT4000UHD does not support Wi-Fi, while the average projector does. 52.6% of projectors support Wi-Fi.
  • 4 dB louder operation
    Optoma GT4000UHD has a higher audible noise than the average projector (34 dB vs 30 dB). The average projector has 30 dB of audible noise.
    Maximum noise rating.
  • 1 dB louder eco mode
    Optoma GT4000UHD has a higher audible noise in eco mode than the average projector (29 dB vs 28 dB). The average projector has 28 dB of audible noise in eco mode.
  • 183 mm thicker
    Optoma GT4000UHD is thicker than the average projector (328 mm vs 145 mm). The average projector has a thickness of 145 mm.
  • 45.2% heavier
    Optoma GT4000UHD is heavier than the average projector (4.5 kg vs 3.1 kg). The average projector weighs 3.1 kg.
  • 2 bit lower color depth
    Optoma GT4000UHD has a lower color depth than the average projector (8 bit vs 10 bit). The average projector has 10 bit of color depth.
    What it is: Number of bits per color channel for color depth.
    When it matters: When you care about accurate tones and refined image quality, color precision matters.

    Importance: LOW

    Optoma GT4000UHD has a lower color depth than the average projector (8 bit vs 10 bit). The average projector has 10 bit of color depth.8 bit vs 10 bit
  • No Wi-Fi support
    Optoma GT4000UHD does not support Wi-Fi, while the average projector does. 52.6% of projectors support Wi-Fi.
    What it is: Support for Wi-Fi network connectivity.
    When it matters: When the projector should handle network features, updates, or streaming functions without needing wired Ethernet only.

    Importance: LOW

    Optoma GT4000UHD does not support Wi-Fi, while the average projector does. 52.6% of projectors support Wi-Fi.
  • 100 inch smaller projection size
    Optoma GT4000UHD has a lower projection size than the average projector (150 inch vs 250 inch). The average projector has 250 inch of projection size.
    What it is: Maximum supported image size for projection, measured diagonally.
    When it matters: When you want a cinema-size picture, maximum projection size matters.

    Importance: MEDIUM

    Optoma GT4000UHD has a lower projection size than the average projector (150 inch vs 250 inch). The average projector has 250 inch of projection size.150 inch vs 250 inch
  • Limited HDMI format
    Optoma GT4000UHD supports a less capable max HDMI input format than the average projector (4K/60Hz vs 4K/120Hz). The average projector supports a max HDMI input format of 4K/120Hz.
    What it is: Highest HDMI input format supported by the projector.
    When it matters: When you want to confirm the exact signal format the projector can accept from high-end modern sources.

    Importance: MEDIUM

    Optoma GT4000UHD supports a less capable max HDMI input format than the average projector (4K/60Hz vs 4K/120Hz). The average projector supports a max HDMI input format of 4K/120Hz.4K/60Hz vs 4K/120Hz
  • 25 degrees less vertical keystone correction
    Optoma GT4000UHD offers less vertical keystone correction than the average projector (5 degrees degrees vs 30 degrees degrees). The average projector offers 30 degrees degrees of vertical keystone correction.
    What it is: Range of vertical keystone correction supported.
    When it matters: When the projector sits too high or too low relative to the screen and vertical image correction becomes necessary.

    Importance: MEDIUM

    Optoma GT4000UHD offers less vertical keystone correction than the average projector (5 degrees degrees vs 30 degrees degrees). The average projector offers 30 degrees degrees of vertical keystone correction.5 degrees vs 30 degrees
  • 25 degrees less horizontal keystone correction
    Optoma GT4000UHD offers less horizontal keystone correction than the average projector (5 degrees degrees vs 30 degrees degrees). The average projector offers 30 degrees degrees of horizontal keystone correction.
    What it is: Range of horizontal keystone correction supported.
    When it matters: When the projector cannot line up perfectly with the screen and you need side-to-side image correction.

    Importance: LOW

    Optoma GT4000UHD offers less horizontal keystone correction than the average projector (5 degrees degrees vs 30 degrees degrees). The average projector offers 30 degrees degrees of horizontal keystone correction.5 degrees vs 30 degrees
  • 4 dB louder operation
    Optoma GT4000UHD has a higher audible noise than the average projector (34 dB vs 30 dB). The average projector has 30 dB of audible noise.
    Maximum noise rating.
    What it is: Sound level produced during operation, measured in decibels.
    When it matters: When you watch in a quiet room close to the projector, lower noise matters.

    Importance: LOW

    Optoma GT4000UHD has a higher audible noise than the average projector (34 dB vs 30 dB). The average projector has 30 dB of audible noise.34 dB vs 30 dB
  • 43.4% lower user score
    Optoma GT4000UHD has a lower user score than the average projector (5.58 vs 8.000).
    What it is: A rating that combines user reviews and the total number of reviews received by the projector.
    When it matters: When you want to know how a projector performs in real use and how reliable it remains over time according to user feedback.
    Optoma GT4000UHD has a lower user score than the average projector (5.58 vs 8.000).5.58 vs 8
Total
Overall
Image Quality
Projection & Lens
HDMI & Gaming
Connectivity
Design & Power

Graphic comparison of Optoma GT4000UHD and

Attribute category
Attribute
No results found

Third-party reviews

United Kingdom
amazon
3.6
5 Reviews

(Reviews last updated: June 2026)

What customers like about Optoma GT4000UHD?

  • High brightness (4,000 lumens) allows for use in rooms with some ambient light
  • Ultra-short throw ratio enables a 100-inch image from just 12 inches away
  • Exceptional gaming performance with low input lag (as low as 4.3ms at 240Hz)
  • Long-lasting DuraCore laser light source rated for up to 30,000 hours in Eco mode
  • Compact and space-saving design compared to traditional long-throw models
  • Supports HDR10 and HLG for enhanced contrast and vibrant color accuracy

What customers dislike about Optoma GT4000UHD?

  • High price point (approximately $4,499) compared to standard 4K projectors
  • Lacks a built-in Smart OS, requiring an external streaming stick for apps
  • Absence of HDMI 2.1 ports prevents 4K/120Hz support for the latest consoles
  • Weak internal audio (single 15W speaker) often necessitates external sound systems
  • Requires a high-quality ALR screen for optimal performance in lit environments
  • No VRR (Variable Refresh Rate) support, which may impact competitive gaming

Expert reviews

F
frandroid.com
01/03/2026
Optoma: The latest news, reviews, and best deals

Based on the Frandroid evaluation, the Optoma Photon Go is a compact, ultra-short-throw (UST) DLP projector that scores a 6/10. It is heavily praised for its portability, weighing under 2 kg (1.72 kg), and its integrated battery that delivers roughly 1 hour and 30 minutes of wire-free video playback. A major standout feature is its 0.18:1 throw ratio, which allows users to project a...Read more

(Translated)Show original

Video reviews

Best alternatives

awol-vision-ltv-3500
AWOL Vision LTV 3500

Projectors

7.8
No image
Leica Cine Play 1

Projectors

8.3
No image
AWOL Vision Aetherion Pro

Projectors

8.1
No image
Optoma UHZ5000

Projectors

8.0
vava-chroma
VAVA Chroma

Projectors

7.5
anker-nebula-x1
Anker Nebula X1

Projectors

8.6
xgimi-titan
XGIMI Titan

Projectors

8.6
hisense-vidda-c5
Hisense Vidda C5

Projectors

8.3
epson-epiqvision-ultra-ls800
Epson EpiqVision Ultra LS800

Projectors

7.3
jmgo-n3-ultra
JMGO N3 Ultra

Projectors

8.6
hisense-100l5h-dlt100c
Hisense 100L5H DLT100C

Projectors

7.0
benq-v7050i
BenQ V7050i

Projectors

7.1

Compare Optoma GT4000UHD with

VS
VS

Compare