[the_other]

> You can disable "Require Attention for Face ID" under Settings > Face ID & Passcode. That makes Face ID far more reliable and consistent in my experience (assuming you're okay with the reduced security tradeoff).

I have had it in this mode for years. It's still very fragile and/or skittish regarding making me use my passcode. Intuitively, it feels like about 10-15% of logins require the code rather than my face.

> If you have an Apple Watch, you can also configure it to unlock your phone automatically when an obstruction prevents Face ID from recognizing your face.

That's a very expensive solution.

> Face ID works in the dark, at pretty much any angle, and requires zero interaction.

All of which apply to TouchID too.