I agree, it looks like it ticks all the boxes.

I usually only replace phones when the battery starts going. But I'm thinking of getting the SE anyway, just in case it isn't available when this one (X) finally goes.

Oh thank you. I've been making up my mind over which phone to get next. You've just helped me rule out the SE. The TouchID is one feature I've never had reliable experience with. I have sweaty hands, and it seems TouchID has trouble with fingers with sweat on them. But even when I dry my hands before attempting it it wouldn't always work. I thought FaceID would be worse until $WORK gave my team an Apple with FaceID. I got to see first hand how much better FaceID is. It's doesn't have a 100% success rate but it is much closer to 100% than TouchID in my experience. I just pick up my phone and it's unlocked almost instantly. A much better UX than I had with my previous iPhone 8 and 5s which had TouchID. I was disappointed they didn't improve it for the 8, it was just as bad as the 5s.

Mask-independent TouchID on the $399 iPhone SE has been 100% reliable. Even works in the dark, including close distances where FaceID forces you to move the phone back so it can focus. Allows the phone to be unlocked with one hand without looking, when multitasking.