Mar 15, 2021 ·  The ViewSonic X10-4KE delivers 4K UHD resolution, HDR, and built-in streaming, plus an excellent audio system. It's semi-portable—call it luggable—and its LED light source will last for years. MSRP... 

Nov 21, 2019 ·  The ViewSonic X10-4K is an elegantly designed portable short-throw 4K DLP projector that uses an LED light source to deliver higher brightness and longer lifespan. It’s quick and easy to set up,... 

ViewSonic differentiates the X10-4K from many of its competitors with the projector's light source. Instead of a traditional lamp, the X10-4K has a RGBB LED engine with an output of 2,400 LED lumens and a life of 30,000 hours. LED lumens is a manufacturer's estimate of an equivalent ANSI lumen specification that accounts for the fact that LED light is perceived to be brighter than what industry-standard ANSI lumen measurements suggest. (You can read more about LED lumens here in ProjectorCentral's article on the subject, and at ViewSonic's website. The X10-4K's ANSI lumen specification is 1,000 lumens, though we measured less. The X10-4K uses a second-generation 0.47-inch Texas Instruments DLP chip with XPR technology that pixel-shifts a 1080p image four ways to achieve the 4K picture. While many may gripe that this means the ViewSonic isn't a true 4K projector, the difference is indistinguishable. The new second-generation chip limits the dark band around the projected image that w... 

Mar 28, 2021 ·  30-second review The Viewsonic X100-4K, the company's latest 4K UHD projector, is both quiet and bright, and offers a lot for its $1,699 / £1,500 (around AU$2,200) price point. 

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ViewSonic X10-4K - DLP projector - short-throw overview and full product specs on CNET.