Optoma technology UHD55 3600-Lumen XPR 4K UHD Home Theater DLP Projector

Model: UHD55

Optoma Technology Warranty
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ON A BRAND NEW Optoma Technology UHD55

MSRP: $1,249.00 ?


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Lens f = 12.81 - 16.74 mm
Lens Shift Vertical: ± 10%
Optical Zoom Manual: 1.3x
Throw Distance 47.24 - 318.9" / 119.99 - 810 cm
Throw Ratio 1.21 to 1.59:1
Projection Size 34.1 - 302.4" / 86.6 - 768.1 cm

Input/Output Connectors

Inputs/Outputs 2 x HDMI 2.0 (HDMI Type-A) Audio, Video Input
1 x VGA (DE-15/DB-15) Video Input
1 x 1/8" / 3.5 mm Mini Audio Input
1 x Optical (TOSLINK) Audio Output
1 x 1/8" / 3.5 mm Mini Audio Output
2 x USB 2.0 (USB Type-A) Data Input
1 x USB 2.0 (USB Type-A) Power Output
1 x RS-232 (DE-9/DB-9) Control
1 x 12 V Trigger Control Output
1 x Ethernet (RJ45) LAN

Image Display

Dynamic Contrast Ratio 1,200,000:1
DLP Link 3D Yes
Supported 3D Formats Frame Packing (up to 1080p)
Scan Horizontal: 31 to 135 kHz
Vertical: 24 to 120 Hz
Display System 0.47" DMD DLP
Color Depth 10-Bit (1.07 Billion Colors)
On-Screen Resolution Up to 4K UHD (3840 x 2160) via Pixel-Shift Technology
Supported Resolutions Maximum: 4K UHD - 3840 x 2160 @ 60 Hz
Maximum Brightness 3600 Lumens
Uniformity 75%
Offset 105% 
Aspect Ratio Native: 16:9
Supported: 4:3


Wireless LAN / Wi-Fi Yes, with Included Adapter


Weight 8.6 lb / 3.9 kg
Operating Altitude 0.0 to 9842' / 0 to 3000 m
Operating Temperature 41 to 104°F / 5 to 40°C
Operating Humidity 0 to 85%
Dimensions (W x H x D) 12.4 x 4.7 x 10.6" / 31.5 x 11.9 x 26.9 cm
Light Source Lamp
Lamp Power 240 W
Expected Lamp Life Full Brightness: 4000 Hours
Medium Brightness: 10,000 Hours
Low Brightness: 15,000 Hours
Fan Noise Full Brightness: 28 dB
Medium Brightness: 26 dB
Security Cable Lock Slot
Password Protection
Security Bar
Supported Languages English
Simplified Chinese
Traditional Chinese
AC Input Power 100 to 240 VAC, 50 / 60 Hz
Power Consumption Full Brightness: 320 W
Low Brightness: 220 W
Standby Mode (Lamp Off): 0.5 W


Speaker Power 10W
Built-In Speaker Yes (Mono)
Supported HDR Input Formats HDR10, Hybrid Log Gamma
Keystone Correction Horizontal: ± 40°
Vertical: ± 40°
Expert Reviews
Pc magazine.34972991
2 weeks ago

The 4K Optoma UHD55 is equal parts gaming and home entertainment projector, thanks to a short input lag combined with a high quality image.

  • +

    4K UHD resolution, Full HD 3D, HDR10 and HLG HDR support, Bright enough for a room with ambient light, Good out-of-box color accuracy, Short input lag

  • -

    Only one of the two HDMI ports offers the short input lag, Limited number of streaming apps

11 May 2022

A while ago I told you about a new small portable projector from Acer whose internal battery had enough power to show a couple of videos back to back. Here I get to try a full size offering from Optoma one of the leaders in projector technology.

4 September 2017

We've kept you waiting until the second page, so let's cut to the chase: the UHD550X can deliver delightful 4K visuals. The image quality belies the price tag, and there's good reason to consider this projector as an affordable upgrade from an ageing 1080p unit.

  • +

    4K and HDR for under £2,000, Competent HD upscaling, HDMI 2.0 with HDCP 2.2, Image size dwarfs any current TV

  • -

    Contrast could be better, Big and bulky chassis, Doesn't support 3D

What hi fi.32817832
28 July 2022

While occasionally great, the UHD55 lacks the sort of consistency required for a truly immersive home entertainment experience Bright and colourful HDR Fast response time for gaming Optical vertical lens shift Below par native black levels Light instability in dynamic modes Unoptimised streaming...

User Reviews
3 weeks ago

Upgraded from a 15-yr old projector. Using mainly for movies and TV through Roku. Brightness and contrast are good with medium ambient light. Not amazing but definitely watchable. Sometimes loses connectivity to Roku despite HDMI connection.

  • +

    easy set up. useful that exact throw distance not required.

  • -

    brightnessinstructions unclearsuggested setup throw distance was not correct

22 April 2020

This is my second projector upgrade. I moved to my new house and was unable to set up a normal ceiling mounted projector. So I started checking out the ultra short throw units. I went with this Optoma 1080 ultra short throw unit unit. I have it paired with a Silver Ticket 92” screen.

11 December 2018

No one is mentioning the light border. Once set up... There is still a fixed light border that is not part of the image, yet is light enough to show. So, going left to right. Wall, light border,screen border,screen (as seen in pic 2 and even the bottom border on pic 1) I might be able to forgive...

7 November 2018

This unit gives a nice sharp picture, however the colors seem just a little off and no amount of adjustment seems to fix this. The brightness is wonderful with lights on and you can see the image clearly. The images have a slight greenish hue sometimes and I keep it in game or cinema mode.

21 August 2019

Went through several cheaper projectors, trying to find one good enough for me without spending a lot.. every one I got, I stepped up in price and theoretically quality every time, but they all continued to have some drawback(s), until I finally landed on this one.

9 November 2018

Works OK. Bright and able to project big screen at very short distance, but fan noise is unbearable especially in Bright mode (I need to turn this on to use in a bright room). Also unable to get a straight line at the top edge of the screen. I'm returning mainly due to fan noise issue.

20 July 2022

Time to replace the old projector a Sony VPLHS20. Was 19 years old and started to lose picture quality. Only had 1300 lumens to begin with. Had problems managing light conditions in the theater room downstairs during the middle of the day. Got the UHD55 after a lot of research and comparisons.

  • +

    ValueEasy to install and operateBright and clear picture

15 February 2020

Relally like the idea of having the projector inches away from the screen and a 4K projector doing that was getting pretty expensive! But for a 1080p picture this exceeds my expectation! Definitely a value for money.

7 February 2020

I upgraded to this from a 540p regular throw Epson projector, which I also loved and served me well for many years. I was leary to upgrade but not having cords running across my apartment living room cannot be beat.

1 February 2020

I gave it three stars because the video quality is impressive, but not enough for me to keep it. The fan noise was unbearable. I tried lowering the brightness but I could still hear it over the volume.

Product Highlights
  • Brightness of 3600 Lumens
  • XPR 4K UHD On-Screen Resolution
  • 1.21 to 1.59:1 Throw Ratio
  • VGA, 2x HDMI 2.0 Inputs
  • Analog Audio Input and Output
  • Built-In 10W Speaker
  • RS-232 Controllable
  • IR Remote & USB Wi-Fi Adapter Included
  • HDR10 & HLG Support
Average Expert Score
Average User Score
In The Box
  • Optoma Technology UHD55 3600-Lumen XPR 4K UHD Home Theater DLP Projector
  • Optoma Technology Wireless USB Adapter for Select Optoma Projectors
  • Remote Control
  • CR2025 Battery
  • AC Power Cord
  • Limited 1-Year Warranty on Projector
  • Limited 90-Day Warranty on Lamp
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