https://www.theverge.com/circuitbreaker/2019/2/24/18235249/lg-g8-z-camera-hand-id-palm-scanner-ir-infrared-veins-unlock-mwc-2019

Last year, LG released the G7 ThinQ — by no means a bad phone, but certainly one that struggled to make its mark. At this year’s MWC, LG is announcing its successor, the LG G8, which brings some new features and upgrades to try to stand out where the G7 faded into the background.

It’s hard to notice changes on the outside, but LG has done a lot with the updated front-facing camera setup, which it calls the “Z-camera”. What that actually means is that LG is using a ToF sensor that lets the G8 detect motion, gestures, and depth in front of it.