https://techcrunch.com/2017/09/12/faceid-will-work-with-apple-pay-third-party-apps/

Goodbye fingers, hello faces. With the introduction of FaceID, and the removal of the TouchID button, Apple today confirmed speculation about its next generation of on-device authentication when it comes to paying for things: you will now be able to buy goods using your new iPhone X, authenticating your identity with facial recognition.

Apple detailed the new iPhone X on stage today at the Apple press conference, including one of its standout features, FaceID. Essentially the replacement for Apple’s touch-to-authenticate system, TouchID, FaceID will unlock your iPhone and get you into your protected apps – like your financial apps, such as a bank’s app or Mint, for example – just by looking at your iPhone.