The Benq TH685P projector sports a 1080p HDR picture with low-latency input and a 120Hz refresh rate for gamers. While the picture looks sharp and saturated, even at 100-inches, it does suffer from the rainbow effect in some instances and the fan is quite loud. That could be enough to ward off some buyers, but otherwise, it has a fantastic picture and great sound for $800.
Source: Benq TH685P 1080p Gaming Projector review