Optoma UHD35STx vs Optoma GT3900UHD Short Throw Projector

Both are short throw 4K DLP projectors from Optoma, and the real split is the light source. The UHD35STx uses a lamp rated 4,000 hours, while the GT3900UHD uses a DuraCore laser rated up to 30,000 hours, so the laser model is the one to keep for years of daily use. The UHD35STx is brighter than its rating suggests for lights-on sports and has a strong record with owners on picture and quietness, but reports of DMD chip failures and dead pixels after warranty are a real risk. Buy the GT3900UHD for a permanent game room, golf sim or living room setup; buy the UHD35STx only if you want a lamp projector you can move around and accept the shorter life.

• Choose the Optoma UHD35STx if you want a compact, light short throw projector to carry between rooms for sports and gaming nights and you accept replacing a lamp every few thousand hours.
• Choose the Optoma GT3900UHD if the projector will stay in one room for years, especially a golf sim or game room, and you want laser life, higher brightness and WiSA wireless audio.