BenQ TK850i True 4K HDR-PRO Smart Home Entertainment Projector powered by Android TV | 3000 Lumens | 98% Rec.709 | Lens shift & Keystone for Easy Setup | 3D Projector for Binge Watchers and Sports

I just received this projector yesterday and am incredibly disappointed in the whole user experience as well as all the bugs. For a $1500 projector I expected something way more functional than the Epson my housemates bought for $800. Something seems to be wrong with the HDR mode as sometimes the entire image looks like it has a green overlay on it (EDIT: I fixed this with a software update). Additionally, when HDR mode is on something inside the projector makes a horrible grinding/buzzing sound, like old computer sounds from 15 years ago. The green overlay isn’t always there and the buzzing sound isn’t as well, so there has to be some issue with it. Edit: here is a link to a video of the sound coming from the projector. https://youtu.be/LHJC_qN9Ils Does not play sound from my Sony Blu-Ray player for some reason even though my housemates projector has no problem. Input switching is incredibly slow as are changing some other settings. Sometimes I’ll switch back to my AppleTV 4K and the projector won’t even recognize the input, so I have to restart the projector (which takes five minutes) just to get the AppleTV to show up. I reached out to BenQ yesterday and am waiting to hear back so I can update this review. But if you’re stuck at home right now and are looking for a projector, don’t get this one because it’s not worth the hassle, even without the bugs it’s still a pain in the butt. EDIT: it has been almost a week and I have received no response from BenQ. The image quality is nice, but the whole experience so far has been way too frustrating for something I was so excited to get. Now I feel like a sucker for spending this much money on something that should have been way better. Why does it say “stream Netflix and Prime”? There is no smart TV interface, it’s just saying you can plug in a streaming device through the input. So with that statement it’s clear every statement they make about this projector is just meaningless marketing hype. I expected so much better from BenQ.

Easy set up and great picture!

UPDATE***** Old review below. The projector made it just about 3 years of use and 1400 hours, now HDMI ports totally dead. It will not run a long 4k HDMI cable. Wont work. The her setting is so white washed its useless, unless you are able to figure how to set it properly. Non hdr it works great. Has an auto sense for projector fitment. Have never touched the focus and non hdr colors look very good.

I was hopeful that passage of time and technology improvements would make this a better projector than my unconverting 2k to 4k. ....not so much. :-(

I have been using BenQ and it was a good experience in all aspects, after 8 years of usage the projector lamp got broke .. based on good experience this time I choose this new one but I had a bad experience as loud noise and picture also not up to that which I expected with my previous experience.. finally returned..

The unit came wrapped in a protective plastic that when we took it off left a big sticky mess all over the unit that does not come off.

Love this projector! Replaced an aging, BenQ W1070 1080p projector with the HT3550, and could not be happier. Fits the same as the W1070 in my slightly smaller room, and produces a brilliant sharp 4k image. Movies and 4k content is spectacular. HDR required a firmware update out of the box. (1.0.3 to 1.0.5) that resolved HDR coloration issues to my satisfaction. Gaming works very well. Was a little worried about lag going in with the listed (~50ms) lag, but found it to be perfectly acceptable for couch console stlye gaming. No noticable difference in play to that of a standard 4k tv. Tested 3D content on Blu-ray and it worked beautifully with plenty of light and a bright image. At this price and feature level I highly recommend it!

The picture quality is good. With 4K, pixels are become invisible. Text is smooth. Very noisy fan, even in the Silence mode (no 4K mode). This doesnt bother me much during movie time. But I also use the projector as secondary monitor, and the noise is very annoying during daily use. I came from a BenQ W1070. I was hope that this HT3550 is a direct replacement. However, not the same throw ratio with W1070. I needed to request installation service.

I absolutely loved this projector when it was new. It was an upgrade from the BenQ W1070. The picture quality was top notch, bright, and crisp. The installation was simple as it worked great with the ceiling mount I already had installed. I removed the W1070 and slipped the HT3550 right into place. The love affair is quickly coming to an end though as the pixels are dropping like flies. It started with one off to the side and I was okay with that. Then a second died, then a third, forth.... Its up to six now and its becoming unbearable especially when its a really dark scene in whatever Im watching. For the price of this item, I would expect it to last a longer than it has.

Only real dislike is that superimposed images and information, still or scrollng are jittery and it really annoys me. If is audition a 4k projector that does not do this then I will buy it if the price is not ridiculous. This may not be the fault of the 3550 but the broadcaster, that is to be determined.