BenQ TK700STi vs Optoma UHD35STx

The Optoma UHD35STx is the better gaming projector, with 4.2 ms input lag at 1080p/240 Hz and 16.9 ms at 4K/60 Hz, plus 3,600 lumens for lights-on sports. The BenQ TK700STi is the safer all-rounder: it includes an Android TV adapter, has a 3-year warranty, and its 0.9–1.08 throw ratio gives more placement flexibility than the Optoma's fixed 0.5 lens. Optoma owners report excellent picture and quiet operation but also dead pixels, DMD chip failures, and poor support after warranty, so the BenQ is the lower-risk buy for most homes.

• Choose the BenQ TK700STi if you want streaming apps built in, a longer warranty, and more flexible placement from a short throw.
• Choose the Optoma UHD35STx if competitive gaming is the priority and you want the lowest input lag and highest brightness.