Optoma launches £1549 4K Ultra HD projector with Amazon Alexa voice control

Amazon, Gadgets, Projectors

Optoma’s first 4K Ultra HD projector to feature Amazon Alexa voice control – the UHD51A – is now on sale. 

Available on Amazon UK for £1,549.99, the new projector offers a smart home entertainment solution with intuitive control along with 4K crystal clear detail in every image.

In addition to Alexa support, the UHD51A comes equipped with a 4K UHD media player, a wireless USB dongle, USB reader and 2,400 lumens for vibrant big-screen entertainment.  It boasts High Dynamic Range (HDR) compatibility, HDCP 2.2 support and includes stereo speakers.

Installation is simple with vertical lens shift for fuss free positioning and a host of connection options such as two HDMI 2.0 ports. The compact UHD51A is also lightweight and easy to move around, claims Optoma.

With full 8.3 million on-screen pixels, the new model meets the Consumer Technology Association (CTA) requirements for 4K UHD and complies with the CTA High Dynamic Range (HDR) compatible display standards. This guarantees razor sharp, vivid images capable of showing more details than standard HD, claims Optoma.

Optoma also reckons the PureMotion frame-interpolation technology eliminates motion blur or image judder, even in high-speed action films or fast-paced sports.

Says Kishan Mistry, Senior Product Manager at Optoma EMEA:

“Optoma is excited to be among the first brands to bring Alexa natively to 4K home entertainment projectors.

“With industry-leading projection technology coupled with Alexa, we’re enabling instant control for a movie or gaming session as users switch inputs, launch content, adjust the volume and more with their voice.”

UHD51A key features

  • 4K UHD resolution and HDR compatible
  • Voice control – Alexa supported device
  • Amazing colour – accurate 100% Rec.709 colours, 2400 lumens
  • Feature packed – built-in media player and wireless
  • Fluid viewing – PureMotion frame interpolation processing
  • Digital connectivity – 2x HDMI and HDCP 2.2 support
  • Easy set-up and operation – vertical lens shift
  • Powerful sound – built-in stereo speakers

A full specification sheet for the UHD51A together with information on the full product range, brochures and images of the projectors are available from www.optoma.co.uk


Resolution 4K UHD
Lamp life 15,000 hours
Weight 5.22kg
Contrast ratio 500,000:1
Brightness 2400 ANSI lumens
Throw ratio

1.21 – 1.59:1

Lens shift

Vertical: +10%

Screen sizes

0.87 – 7.68m (34.1″ – 302.4″) diagonal 16:9

Built-in speakers 2x 5W
3D Full 3D
Dimensions 392 x 281 x 118mm (w x d x h)
Connection 2x HDMI, VGA, Audio in, Audio out, S/PDIF out

12V trigger, USB-A power, USB-A wireless Alexa, USB-A reader/wireless, USB-A service


Chris Price
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