
Set up Face ID or Touch ID
You can use Face ID (face recognition) or Touch ID (your fingerprint) to securely unlock your iPhone, sign in to many apps, and make purchases. For your security, Face ID and Touch ID data doesn’t leave your device and isn’t saved anywhere else.
Depending on your iPhone model, do one of the following:
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Set up Face ID: Go to SettingsÂ
 > Face ID & Passcode, tap Set up Face ID, then follow the onscreen instructions.
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Set up Touch ID: Go to SettingsÂ
 > Touch ID & Passcode, tap Add a Fingerprint, then follow the onscreen instructions.