Definition
Face ID is Apple's facial recognition authentication system, introduced with the iPhone X in 2017, that uses a TrueDepth camera array to map and recognize a user's face for device unlocking, payment authorization, and app authentication. Face ID works in the dark and adapts to changes in appearance over time. For creators, Face ID represents the convergence of biometric security and consumer technology. It is also a reference point when discussing AI-powered facial recognition technology and its implications for privacy and deepfakes.