It is capable of fast-charging at up to 18 W, and supports Qi wireless charging as well as reverse wireless charging. This is enabled through a cutout in the back panel for the wireless charging coil, covered by bio-resin.[8] It retains the water protection rating of IP68 under IEC standard 60529. The Pixel 4's Motion Sense capabilities and facial recognition have been omitted, as well as Active Edge and Pixel Neural Core.