A head-to-head projector comparison to help you pick the right one for your room.
Updated August 20, 2026
Verdict
The Optoma is brighter and uses a laser source, which suits a room that is not fully dark. The BenQ is the more accurate projector out of the box and the better film performer in a controlled room. Buy the Optoma for a living room; buy the BenQ for a dedicated theatre.
| Optoma UHZ50 Laser Projector | BenQ HT4550i | |
|---|---|---|
| Light source | Laser, about 30,000 hours | LED, long life |
| Brightness | Higher | Lower |
| Colour accuracy | Good | Better out of the box |
| Ambient light tolerance | Better | Needs a darker room |
| Lens shift | Limited | Vertical shift available |
| Best for | Living rooms | Dedicated theatres |
The room has windows, you watch sport and television as well as films, or you are throwing a large image. Brightness is the specification that decides whether a projector works in a real room.
Check Optoma UHZ50 Laser Projector on Amazon
The room is dark and film is the priority. Out-of-box accuracy means you get a correct image without paying for calibration, and in a controlled room that matters more than raw lumens.
Both avoid lamp replacement. Laser generally goes brighter, LED often has an edge in colour saturation. In this pairing that is exactly how they split.
It matters more, not less. An accurate projector out of the box is one you never have to correct, whereas an inaccurate one needs calibration to reach the same place.
The Optoma, on brightness. Every increase in screen size spreads the same lumens over more area, so large diagonals need the brighter projector.
Comparison based on published manufacturer specifications and the general consensus of owner reports. We have not tested these units side by side. Confirm current prices and specifications before buying. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.