Use Face ID to unlock iPhone, authorize purchases and payments, and sign in to many third-party apps.
How to fix Face ID not working on iPhone and iPad
Use Check In on iPhone to let your friends know you've arrived - Apple Support
Set up Assistive Access on iPhone - Apple Support
Use Apple Pay in apps and on the web on iPhone - Apple Support
Face ID on IPhone 11 - Apple Community
How to Set Up and Use Face ID on Your iPhone
Use Face ID - Apple Support
Face ID not available - Apple Community
View Live Activities in the Dynamic Island on iPhone - Apple Support
Set up Face ID on iPhone - Apple Support
How to share your name and photo in Messages on your iPhone, iPad, or iPod touch – Apple Support
Use Quick Start to transfer data to a new iPhone or iPad - Apple Support
Save keystrokes with text replacements on iPhone - Apple Support
