Face ID is a facial recognition technology developed by Apple Inc. that allows users to unlock their devices and authenticate themselves using their face. It was first introduced in 2017 with the iPhone X, and has since been adopted by other Apple devices such as the iPad Pro and the MacBook Pro.
To use Face ID, users must first set it up by enrolling their face in the device’s settings. Once enrolled, users can simply glance at their device to unlock it or authenticate themselves. Face ID is more secure than traditional password-based authentication methods, as it is more difficult to spoof or hack.