How do I add my spouse to face recognition on iPhone?
Can I add can I add my spouse to face recognition on my iPhone in addition to face recognition for me?
[Re-Titled by Moderator]
Yes, you can have one addition face set up as an alternate appearance by going to Settings > Face ID & Passcode > Set Up an Alternate Appearance. If you do not have the Alternate Appearance option, then there has already been one set up and you will have to Reset FaceID to start over.
Set up Face ID on iPhone - Apple Support