They implied (and I think it’s safe to assume) it’s faster and more accurate.

What I’d like is a wider field of view. I can unlock an iPhonenwith Touch ID while it’s on a table without pointing it at my phone. Face ID couldn’t do that.

Minor issue, but it was annoying from time to time. Hopefully it’s better.

I wonder if they added official multi-person support, not just the ‘alternate appearance’ stuff previously announced.