Projectors have countless advantages over TVs. For setting up a home theater, a projector allows your screen to be essentially as large as your wall. The resulting picture puts even giant TVs to shame. And size helps you see more detail.

I was skeptical initially about whether to buy a TV or projector. Then decided on projector. After that started a tiring 4 days of research on which projector to buy. After doing a lot of research, I shortlisted this one and other one from rival brand but ended up choosing this.

Even though it is not true 4k you would have to have amazing vision to tell the difference. The picture is very vivid and full on a large screen well worth the upgrade from a 1080p projector plus if your into 3D it improves the quality of that format which supprised me.

I have used the projector for over less than a month and it seems the picture quality is awesome. I really enjoy watching content on this one. Super sharp and natural colours. It does offer very less lens shift which means either you have to place it on the table or hang it on the ceiling for a...

Still, things are looking up. Optoma's low-cost 4K beamer, the UHD51, is part of a new generation to offer 3D compatibility, albeit in 1080p. And it turns out this projector is a grand reminder of just how much fun bigscreen 3D can be.

In terms of performance the Optoma UHD51A is pretty typical of the 4K UHD projectors that are using the lower resolution 1920x1080x4 DLP chip. Where it separates itself from the pack at times is in other areas.

4K UHD resolution (1920x1080x4 DLP chip; 4K content capable; including HDR10; lower resolution of the two 4K UHD DLP chips; but nicely sharp; First projector to work with Alexa (won't be the last) and Google Assistant; Works well enough but limited capabilities – so far; Expect more; RGBRGB color...

Black levels could be much better, Better than much of the DLP competition though, A bit low on brightness vs claim; Claim: 2400, max we measured 1982 lumens, I prefer remotes to be backlit – helps when lights are out, Warranty could be longer – 2 years, but BenQ and Viewsonic competitors have 3...

After owning the Optoma UHD550X for over a year and needed something a little smaller for my cinema room. I heard so many good reviews about the Optoma UHD51 and becusae ive always had Optoma projectors i decided to go for the 51. The projector arrived well packed from Amazon.