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UHD51A

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UHD51AAlexa supported 4K Ultra HD projector

Alexa supported 4K Ultra HD projector

Immerse yourself in a world of Ultra HD. The UHD51A delivers the ultimate in smart home entertainment with impressive 4K cinema quality images and support for Alexa voice control. You can now enjoy accurate colours, crystal clear detail, and sparkling contrast for a stunningly immersive experience.

Alexa voice control provides instant setup allowing you to adjust the volume, switch inputs, launch content and more.

Packed with the latest technology and features, this compact UHD projector boasts High Dynamic Range (HDR) compatibility, HDCP 2.2 support, wireless, a built-in media player and PureMotion frame-interpolation processing which eliminates motion blurring or image judder. An RGBRGB colour wheel delivers 100% Rec.709 for accurate, true to life colour rendition - perfect for recreating the big-screen experience at home.

Features

4K UHD resolution and HDR compatible
Amazing colour - accurate 100% Rec.709 colours, 2400 ANSI lumens
Voice control - Amazon Alexa supported device
Feature packed - Built in media player, Wireless and PureMotion

Voice control

Control your projector with your voice using Alexa. You can ask Alexa to turn the projector on or off, adjust volume , switch inputs and more. Voice control is a natural way to interact with technology in the home, and now owners of Amazon Echo devices can simply control the projector with their voice.

4K UHD Resolution

With over eight million pixels, Ultra HD 4K resolution brings four times more detail than Full HD, to deliver sharper, life-like images and richer colours - allowing you to sit closer to the screen and enjoy a more immersive experience.

4K UHD Resolution
HDR compatible

HDR compatible

Capable of receiving and displaying HDR meta data, Optoma HDR compatible projectors allow you to see far more detail and texture. Objects look more solid and life like and the extra detail creates a greater sense of depth. It’s like looking through a window.

Amazing colours

Amazing colours

Watch your movies, TV shows and play games with stunning colours in any environment. Optoma projectors provide reliable performance suitable for any content and environment. Our home projectors are capable of reproducing the Rec.709 colour gamut, the international HDTV standard to guarantee accurate reproduction of cinematic colour exactly as the director intended. Or more saturated colours for a punchy looking image, great for gaming and animated movies.

Vertical Lens Shift

Simplify installation with vertical lens shift, which provides a wider range of projector placement possibilities. This makes it easier to position the projector in your room and enables a wider range of screen size options.

Vertical Lens Shift

PureMotion

Using sophisticated frame-interpolation technology, advanced motion control processing eliminates motion blurring or image judder, even in high-speed action sequences.

PureMotion

UltraDetail

This technology ensures all the information contained in an image is faithfully reproduced on the screen giving a stunning crystal clear, pin-sharp picture.

UltraDetail

PureColour

This mode makes it possible for the projector to reproduce more detailed shades of colour; to provide vivid, balanced colour for vibrant, natural looking images.

Built in media player

Built in media player

Watch movies directly from your projector without the need of a laptop or PC by using the built-in media player. Simply copy your files to a USB stick and watch them on the big screen.

Full 3D

Full 3D

Optoma projectors can display true 3D content from almost any 3D source, including 3D Blu-ray players, 3D broadcasting and the latest generation games consoles.

Colour Management System (CMS)

Display accurate lifelike colours to best match your viewing environment. This unique feature provides you with the flexibility to fine-tune the colour settings for optimal precision.

Colour Management System (CMS)
ISF modes

ISF modes

This feature allows you to save your calibrated day and night mode settings for the highest possible viewing experience.

24p

24p

Most movies are shot at 24 frames per second (fps). To preserve the purity of the original image, Optoma projectors can accept high definition sources at 24 fps to display movies exactly as the director intended.

Integrated speaker

Integrated speaker

Complete your home entertainment experience with the convenience of a powerful built-in speaker for exceptional sound quality and an easy set up without the need for costly external speakers.

USB-Power

USB-Power

Use the USB-A port to power an HDMI dongle, such as Google Chromecast.

Accessories

OCM815B
OCM815B
OCM815W
OCM815W
OCM818B-RU
OCM818B-RU
WUSB
WUSB

Display/image

Display technology
DLP
Resolution
UHD (3840x2160)
Brightness
2,400 lumens
Contrast ratio
500,000:1
Native aspect ratio
16:9
Aspect ratio - compatible
4:3
Horizontal scan rate
31 ~ 135Khz
Vertical scan rate
24 ~ 120Hz
Uniformity
75%
Screen size
0.87m - 7.68m (34.1in - 302.4in)

Lamp info

Light source
Lamp
Lamp watts
240
Lamp life (hours)
4000 (Bright), 15000 (Dynamic), 10000 (Eco)

Optical

Throw ratio
1.21:1 - 1.59:1
Projection distance (m)
1.2m - 8.1m
Zoom
1.3
Zoom type
Manual
Focal length (mm)
12.81 ~ 16.74
Lens shift
Vertical +10, %
Native offset
105%

Connectivity

Connections
Inputs 2 x HDMI 2.0, 1 x VGA (YPbPr/RGB), 1 x Audio 3.5mm
Outputs 1 x Audio 3.5mm, 1 x S/PDIF, 1 x USB-A power 1.5A
Control 1 x USB-A service, 1 x RS232, 1 x RJ45, 1 x 12V trigger, 1 x USB-A reader/wireless, 1 x USB-A wireless Alexa

General

Noise level (typical)
25dB
PC compatibility
UHD, WQHD, WUXGA, FHD, UXGA, SXGA, WXGA, HD, XGA, SVGA, VGA, Mac
2D compatibility
480i/p, 576i/p, 720p(50/60Hz), 1080i(50/60Hz), 1080p(50/60Hz), 2160p(50/60Hz)
3D compatibility
Side-by-Side:1080i50 / 60, 720p50 / 60 Frame-pack: 1080p24, 720p50 / 60 Over-Under: 1080p24, 720p50 / 60
3D
Full 3D
Security
Security bar, Kensington Lock, Password protected interface
OSD / display languages
10 languages: English, French, German, Italian, Japanese, Portuguese, Russian, Chinese (simplified), Spanish
Operating conditions
5°C ~ 40°C, Max. Humidity 85%, Max. Altitude 3000m
Remote control
Backlit home remote
Speaker count
2
Watts per speaker
5W
In the box
Lens cap AC power cord Remote control 2x AAA batteries Basic user manual WUSB (wireless USB dongle)
Operating system compatibility
Windows 7 / 8 / 8.1 / 10, MacOSX 10.9 +, Android 4.0+, iOS 8+

Networking

LAN - control
Yes
LAN - wireless networking
Yes

Power

Power supply
100 ~ 240V, 50 ~ 60Hz
Power consumption (standby)
0.5W
Power consumption (max)
305W

Weight and dimensions

Net weight
5.22kg
Dimensions (W x D x H) (mm)
392 x 281 x 118
Verified owner
UHD51A
en