Apple introduced Face ID with the iPhone X, a new way to secure the phone. The iPhone X uses Face ID, technology that unlocks the phone by using infrared and visible light scans to uniquely identify your face. It works in a variety of conditions and is extremely secure. For now, the hardware requirements for Face ID are only found in the upcoming iPhone X. All other new iPhone models and all existing ones will retain Touch ID. Users can still use Touch ID if they don’t prefer the Face ID option.