As for unlocking the iPhone X, Apple made the solution a marquee feature of the phone. It's called Face ID, and basically, it allows your phone to simply recognize your face and unlock itself right when you look at it. That's right: instead of using your fingerprint or a passcode, you unlock the iPhone X with your beautiful mug. Here's how Apple explains it:
"Face ID revolutionizes authentication on iPhone X, using a state-of-the-art TrueDepth camera system made up of a dot projector, infrared camera and flood illuminator, and is powered by A11 Bionic to accurately map and recognize a face. These advanced depth-sensing technologies work together to securely unlock iPhone, enable Apple Pay, gain access to secure apps and many more new features."