GAMING

BenQ TK700 vs BenQ TH685P

Is 4K Worth It for Projector Gaming? BenQ vs BenQ

Live Amazon prices:Updated July 2026
BENQ TK700$1,199
BenQ TK700

BenQ TK700

⭐⭐⭐⭐4.0/5 (671)
Brightness: 3,200 lumens
Input Lag: 16ms
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BENQ TH685P$798
BenQ TH685P

BenQ TH685P

⭐⭐⭐⭐4.1/5 (79)
Brightness: 3,500 lumens
Input Lag: 8.3ms
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Choose the BenQ TK700:

  • True 4K HDR — clearly sharper for single-player showcases
  • Console-tuned game modes with strong color
  • Better long-term pick if you also watch movies

Choose the BenQ TH685P:

  • Roughly half the input lag (~8.3ms at 1080p/120Hz)
  • Costs hundreds less for the same competitive experience
  • Accepts 4K input and downscales — content still works

Spec-by-Spec Comparison

SpecificationBenQ TK700BenQ TH685P
Price$1,199$798
Resolution4K1080p
Brightness3,200 lumens3,500 lumens
Input Lag16ms8.3ms
Max Refresh Rate120Hz
Contrast Ratio15,000:16,000:1
TechnologyDLPDLP
Throw TypeStandardStandard
Weight6.8 lbs6.2 lbs
Owner Rating4.0/54.1/5
Reviews67179

Bold marks the better value per row. Prices and ratings update from Amazon automatically; blank cells mean the spec isn't verified for that model.

Final Verdict

This is really the "is 4K worth it" question. The TH685P delivers the lowest lag (~8ms at 1080p/120) for hundreds less — and PS5/Xbox competitive modes output 1080p anyway. The TK700 earns its premium only if you play cinematic single-player games where 4K detail on a 100-inch-plus screen is the whole point. Competitive players: TH685P and keep the change. Story-game players: TK700.