The TK800 is not a replacement for BenQ's W1700 TRUE 4K Home Theatre projector.
The BenQ TK800 is Tuned for a different 4K market, one that demands TRUE 4K not "enhanced".
Tuned for Bright Sports, the TK800 cuts off a few percent of the Rec. 709 colour spectrum for a big gain in colour brightness. If you're watching movies in darker (or light controlled) rooms consider also the W1700 or W3000.
True 4K HDR with XPR Technology
Vivid Colors and High Brightness for Living Room Ambient Light
Dedicated Modes for Football & Sports Enjoyment for Sports Fans
Changes are: (not complete list)
More brightness so it's better in high ambient light situations (no better in a home cinema room) as you won't use the extra brightness.
RGBCMY color wheel for brighter colours in well lit rooms. (Cinema uses RGBRGB).
Faster gaming response time with lower latency times (Quicker for serious gamers)
The TK800 TRUE 4Kprojector is not a replacement for the W1700, the TK800 is "turned" for a different market mainly Gaming and Board Room more like a standard "Data Projector" however it boasts TRUE 4Knot "enhanced" in the fine print under a massive (not certified) 4K logo.
We believe the RRP price will be slightly below the very popular W1700.
Superb Image Quality 4K UHD True 8.3 Million Pixel Perfection Producing 4K UHD 3840x2160 resolution with 8.3 million distinct pixels for each frame with XPR technology, TK800 utilizes revolutionary 0.47” single-DMD DLP technology to minimize the sleek, compact profile for modern lifestyles. With four times the resolution of Full HD 1080p, 4K UHD reduces pixel blur for stunning clarity and crisply defined fine details.