The Lenovo Xiaoxin 520 Chocolate Smart Projector is now available in China. The compact projector is 4.8 cm (~1.9-in) thick and has a 1.2:1 throw ratio to produce images up to 120-in (~305 cm) wide. The gadget has smart features, including auto-keystone and intelligent obstacle avoidance, thanks to a built-in camera and LiDAR sensor.
https://www.notebookcheck.net/Lenovo-Xiaoxin-520-Chocolate-Smart-Projector-with-8K-decoding-and-HDR10-support-launches.622239.0.html