The right 4K projector depends entirely on three variables: your room architecture (long-throw distance available vs UST wall placement), your primary viewing content (movies/streaming vs gaming vs sports), and your ambient-light control (dedicated dark room vs typical living room). Here's the decision framework.
If this is your first home theater projector
Get the XGIMI Horizon Ultra ($999). It's the right baseline pick for 90% of first-time buyers: Dolby Vision support, 2300 ISO lumens (works in moderately lit rooms, not just blackout caves), 5-minute setup with ISA 2.0 auto-focus/keystone, built-in Harman Kardon speakers that are actually usable, native Android TV with licensed Netflix. You can spend more on dedicated features (gaming responsiveness, UST architecture, triple-laser color) once you know what you actually want — but as the entry point, this is hard to beat.
If you want to replace your TV with a projector
Get the Hisense PL2 ($1,799) — or upgrade to the PX3-PRO ($2,999) if you have the budget for the triple-laser premium UST experience. The PL2 sits 4 inches from the wall, projects 80-120" image, integrates Google TV, and eliminates the architectural friction (ceiling mount, cable run, ambient light dimming) that kills most “projector instead of TV” plans. The PX3-PRO adds Dolby Vision and 110% BT.2020 color coverage — the widest color gamut in any consumer projector.
If gaming is your primary use case
Get the BenQ X3100i ($1,799). It's the only sub-$2000 4K projector with 4ms input lag at 1080p/240Hz and ~17ms at 4K/60Hz — basically TV-tier gaming responsiveness on a 120" screen. The 3300 ANSI lumens means daytime sports viewing works too. 100% DCI-P3 color matters for HDR gaming. Best pick if you have a PS5, Xbox Series X, or gaming PC and want the 100"+ screen experience without losing competitive responsiveness.
If your viewing room has ambient light you can't fully control
Get the Epson Home Cinema 2350 ($1,179). 2800 lumens is the highest brightness in the under-$1500 tier — actually usable in daylight or family rooms with windows. The 3LCD architecture means equal RGB brightness (DLP single-chip projectors lose 30-50% brightness in color content) which matters more in bright rooms. Plus 3LCD has the longest track record for color stability over 5-10 year ownership.
If you want portability over commitment
Get the XGIMI MoGo 3 Pro ($439) for the best-engineered budget portable, or the Samsung Freestyle 2nd Gen ($598) if you want the Samsung Gaming Hub cloud-streaming integration (Xbox Game Pass on a 100" wall without a console). Both are 1080p (not 4K) — true 4K portables are 3x the price for marginal returns at portable screen sizes.