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Optoma UHD51A Unboxing Video – A Smart 4K UHD Projector Under $2000

Posted on July 24, 2018 By Phil Jones

The Optoma UHD51A is the projector equivalent to today’s smart 4K UHD TVs – with one added bonus. The UHD51A has Alexa built-in, making it the first projector to ever do so. You can use voice commands to have Alexa turn the projector on or off, and to adjust volume, etc. This 2,400 lumen projector is priced at $1,699 and has $K UHD resolution. Subscribe to our YouTube channel and follow us on our social media accounts for updates on all things projector!

This new Optoma is one of two in a series, sibling to the UHD50. They are virtually the same projector in all but a few ways: the UHD51A has Alexa built in, has 3D capabilities, white casing, and costs $1,699, while the UHD50 does not have these things, is black, and costs $300 less. In this video, Art Feierman, President and editor of Projector Reviews, unboxes the projector and provides some insight into its capabilities. We will be creating a review video for the UHD51A shortly. Enjoy the video!

What's in the Box

The Optoma UHD51A includes the projector, a power cord, HDMI cable, remote control, a wireless adapter, documentation, and, the best part – a FREE Amazon Echo Dot! This allows those who do not already have an Alexa-enabled device to use the projector without added expense. For those who already have Alexa in their homes, it extends her reach and keeps her stationed right where you want her.


  • Black Casing
  • DLP Projection Technology
  • 4K UHD (3840 x 2160p) Resolution – Uses the new TI 1920 x 1080 x4 DLP Chip
  • 2,400 Lumens – Bright enough to handle a moderate amount of ambient light
  • 500,000:1 Contrast Ratio
  • Good Lamp Life – 4,000 Hours in Full Power, 10,000 in ECO, and 15,000 in Dynamic Mode
  • 1.3:1 Manual Zoom
  • Vertical Lens Shift (+/- 10%)
  • Built-in 5-Watt Stereo Speakers
  • Light-Weight at Just Over 11.5 Pounds – Portable enough for an outdoor movie night
  • HDMI HDCP 2.2 Port for 4K Content
  • Alexa-Enabled Device
  • 3D Capable
  • Creative Frame Interpolation aka “PureMotion”
  • Good Color Accuracy
  • Warranty – One Year Parts and Labor


From the Editor: This video was created as a brief overview of the Optoma UHD51A projector and its box’s content. It was edited and produced by Nikki Kahl and features Art Feierman, editor of

Videos that are part of the Projector Reviews TV channel are created by Projector Reviews Inc. If we review a projector and it wins one of our awards, it becomes eligible for a video summary. Of course, we can only do a limited number of these videos. In some cases, we will choose a projector review to do a video of. In other cases, a request may come from the manufacturer. As we do with the rest of the content on our website, we offer manufacturers Permissions.

With these paid Permissions, manufacturers can post these videos on their own websites, pass them out to their dealers, and use them for other promotional purposes including trade shows and point-of-sale displays in retail stores. These videos are very short versions of the full review. In just a few minutes worth of video we can’t begin to capture all the information in the review, so we call this a video summary.

If this video is positive and enthusiastic about the projector, is simply because the review itself was positive and enthusiastic. We try to make the videos more fun, a bit less dry, with far less technical detail. Enjoy, but also visit the full review for more depth, even the settings that work best. Thanks! - Art

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