Many iPhone users want to add multiple Face IDs to their device for convenience and flexibility. However, by default, iPhones allow only one Face ID profile. This can be a challenge if you want to share your device securely or use different looks for unlocking.
Fortunately, Apple provides a way to add an alternate appearance or a second Face ID that can recognize a different face. This feature helps developers and users improve device accessibility and security without compromising privacy.
What is Face ID on iPhone and how does it work?
Face ID is Apple's facial recognition technology used to unlock iPhones, authenticate payments, and access secure apps. It uses a TrueDepth camera system to create a detailed 3D map of your face. This map is stored securely on the device's Secure Enclave and compared every time you attempt to unlock or authenticate.
The system uses infrared sensors and dot projection to work in various lighting conditions, including darkness. Face ID adapts over time to changes in your appearance, such as growing facial hair or wearing glasses.
This technology ensures that only the registered face(s) can unlock the device, enhancing security over traditional passcodes or Touch ID.
Can you add two Face IDs on an iPhone?
Technically, you cannot add two separate Face ID profiles on an iPhone. However, Apple allows you to set up an "Alternate Appearance" which functions as a second Face ID. This alternate appearance can be used to register a significantly different look or a second person’s face.
This feature is useful if you want to share your device with a trusted person or if your appearance varies greatly (e.g., with or without glasses, makeup, hats). The alternate appearance is stored alongside the primary Face ID data and works seamlessly during authentication.
Keep in mind that the alternate appearance is limited to one additional profile, so you cannot add multiple distinct faces beyond two total.
What prerequisites are required for adding two Face IDs on iPhone?
- Compatible iPhone model: Face ID is available on iPhone X and later models excluding iPhone SE series.
- Updated iOS version: Ensure your iPhone runs iOS 12 or later, as Alternate Appearance was introduced in iOS 12.
- Face ID setup: You must have already set up Face ID with your primary appearance before adding an alternate.
- Good lighting conditions: Proper lighting helps the TrueDepth camera capture accurate facial data during setup.
- Secure environment: Perform the setup in a private and stable environment to avoid interruptions.
How do you add a second Face ID (Alternate Appearance) on iPhone?
Adding a second Face ID on your iPhone involves setting up an Alternate Appearance in the Face ID settings. This process captures a different facial profile for authentication.
Follow these steps carefully to add an alternate appearance:
Step 1: Open Face ID & Passcode Settings
Access the Face ID settings to manage facial recognition profiles.
Settings > Face ID & PasscodeThis opens the Face ID management screen where you can add or reset facial data securely.
Step 2: Enter your passcode
For security, you must enter your device passcode to proceed with Face ID changes.
[Enter your device passcode]This step verifies your identity before allowing modifications to Face ID settings.
Step 3: Tap "Set Up an Alternate Appearance"
Locate and select the option to add an alternate facial profile.
Tap "Set Up an Alternate Appearance"This initiates the process to scan a second face or a significantly different look.
Step 4: Position your face in the frame
Follow the on-screen instructions to position your face inside the circle for scanning.
Move your head slowly to complete the circle scanThe TrueDepth camera captures a detailed 3D map of your face from multiple angles.
Step 5: Complete the second scan
After the first scan, you will be prompted to complete a second scan by moving your head again.
Complete the second scan by moving your head slowlyThis ensures the system captures full facial data for accurate recognition.
Step 6: Finish setup
Once the scans are complete, the alternate appearance is saved and ready for use.
Tap "Done" to finishYour iPhone can now recognize two different facial profiles for unlocking and authentication.
What are common errors when adding a second Face ID and how do you fix them?
- Face not detected: Ensure your face is fully visible and well-lit. Remove hats, masks, or glasses that may obstruct the TrueDepth camera.
- Setup interrupted: Avoid moving too quickly during scans. Follow the on-screen instructions slowly and steadily.
- Alternate appearance already set: You can only add one alternate appearance. To add a new one, reset Face ID and set up again.
- Software bugs: Restart your iPhone or update to the latest iOS version to fix glitches affecting Face ID setup.
- Hardware issues: If the TrueDepth camera is damaged, Face ID setup will fail. Contact Apple Support for hardware diagnostics.
What are best practices when using two Face IDs on iPhone?
- Use trusted faces only: Add alternate appearances for trusted individuals to protect your privacy and security.
- Keep software updated: Regularly update iOS to benefit from security patches and Face ID improvements.
- Maintain clean sensors: Keep the TrueDepth camera area free from dirt or smudges for accurate recognition.
- Use passcode backup: Always have a strong passcode as a fallback when Face ID fails or is unavailable.
- Reset Face ID if needed: If recognition becomes unreliable, reset Face ID and set up profiles again for better accuracy.
Step-by-step guide to add 2 Face IDs on iPhone
Step 1: Verify your iPhone supports Face ID
Before adding a second Face ID, confirm your device model supports Face ID technology. Compatible models include iPhone X and newer, excluding iPhone SE.
Check in Settings > General > About for model informationThis ensures your device has the necessary hardware for facial recognition.
Step 2: Set up your primary Face ID
If you haven’t already, set up your main Face ID profile by following the on-screen instructions in Face ID settings.
Settings > Face ID & Passcode > Set Up Face IDThis captures your primary facial data for unlocking and authentication.
Step 3: Add an alternate appearance
Navigate to Face ID settings and select "Set Up an Alternate Appearance" to add a second face or look.
Settings > Face ID & Passcode > Set Up an Alternate AppearanceThis lets you register a different facial profile recognized by your iPhone.
Step 4: Follow the scanning process
Position your face in the frame and slowly move your head to complete two scans as prompted.
Follow on-screen instructions carefullyThis step ensures the TrueDepth camera captures a comprehensive 3D facial map.
Step 5: Test both Face IDs
Lock your iPhone and try unlocking it using both your primary and alternate appearances to confirm they work.
Lock screen and look at your iPhoneSuccessful recognition from either face will unlock your device.
Step 6: Manage Face ID settings
Adjust Face ID preferences such as requiring attention or disabling Face ID for specific apps in the settings menu.
Settings > Face ID & Passcode > Customize optionsThis helps tailor Face ID behavior to your security needs.
What are common Face ID errors and how do you fix them?
- Face ID not recognizing face: Clean the TrueDepth camera and ensure your face is unobstructed. Restart the device if needed.
- Face ID temporarily disabled: Enter your passcode to re-enable Face ID after multiple failed attempts.
- Face ID setup fails: Restart your iPhone and try setting up Face ID again in a well-lit environment.
- Alternate appearance not working: Reset Face ID and set up both primary and alternate appearances again.
- Hardware malfunction: If errors persist, contact Apple Support for hardware inspection.
What are best practices when using Face ID with alternate appearance?
- Limit alternate faces to trusted users: Only add people you trust to maintain device security.
- Regularly update iOS: Keep your device updated to improve Face ID accuracy and security.
- Use strong passcodes: Always have a strong passcode as a backup authentication method.
- Protect your device physically: Avoid exposing your iPhone to damage that could affect Face ID hardware.
- Review Face ID settings periodically: Check and adjust Face ID preferences to suit your security needs.
Conclusion
Adding two Face IDs on iPhone is possible through the Alternate Appearance feature, allowing you to register a second facial profile for unlocking and authentication. This enhances convenience for users who share devices or have varying looks.
By following the step-by-step guide and best practices, you can securely manage multiple Face ID profiles on compatible iPhones. Always ensure your device is updated and protected to maintain reliable facial recognition and device security.
FAQ
Can I add more than two Face IDs on my iPhone?
No, iPhones only support one primary Face ID and one alternate appearance, allowing a maximum of two facial profiles.
Will adding an alternate appearance reduce Face ID accuracy?
When set up correctly, alternate appearances maintain high accuracy and allow seamless recognition of both profiles.
Can I use alternate appearance to register my child’s face?
Yes, you can add a trusted family member’s face as an alternate appearance for convenient device sharing.
Does alternate appearance work with Face ID apps and payments?
Yes, both primary and alternate appearances authenticate app access and Apple Pay transactions securely.
How do I remove an alternate appearance from my iPhone?
To remove an alternate appearance, reset Face ID entirely in settings and set up Face ID again with only your desired profile.