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Optoma UHD51A Projector

Manufactured By: OptomaModel: E1P0A17BE1Z1
    4K UHD, 2,400Lm, 1.2 - 1.59:1, 16:9 Native, 4:3 Compatible, 5.3kg, projector 2 Year RTB, lamp 1 Year / 1,000hrs
    Optoma UHD51A 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, HDMI 2.0, wireless, a built-in media player, IFTTT 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.



    • 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 or Google Assistant. You can ask Alexa or Google 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 or Google Home devices can simply control the projector with their voice.


    Note: Alexa smart home control is only currently available in the UK and Germany. Google Assistant currently only works in the UK.


    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.


    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

    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.



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


    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

    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.


    ISF modes

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



    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

    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.



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



    IFTTT (If This Then That) is a free web-based service that allows you to create chains of simple conditional statements, called applets. Applets are used to trigger events such as getting your projector to turn off when you leave the house.




    Display technology




    UHD (3840x2160)



    2,400 lumens


    Contrast ratio



    Native aspect ratio



    Aspect ratio - compatible



    Horizontal scan rate

    31 ~ 135Khz


    Vertical scan rate

    24 ~ 120Hz





    Screen size

    0.87m ~ 7.68m (34.1" ~ 302.4") (diagonal)

    Lamp info

    Light source type



    Lamp watts



    Lamp life (hours)

    4000 (Bright), 15000 (Dynamic), 10000 (Eco)


    Throw ratio

    1.21:1 - 1.59:1


    Projection distance (m)

    1.2m - 8.1m





    Zoom type



    Focal length (mm)

    12.81 ~ 16.74


    Lens shift

    Vertical +10%


    Native offset




    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


    Noise level (typical)



    PC compatibility



    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



    Full 3D



    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



    Watts per speaker



    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+


    LAN - control



    LAN - wireless networking



    Power supply

    100 ~ 240V, 50 ~ 60Hz


    Power consumption (standby)



    Power consumption (min)



    Power consumption (max)


    Weight and dimensions

    Net weight



    Dimensions (W x D x H) mm

    392 x 281 x 118


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