You can record videos for later playback on the AVP, in case you care. There's also UWB and magsafe on the vanilla 16. And the dynamic island and the camera control button. But it's mostly little things, which many people probably don't care about.

Try it in the store. If it's anything like my 12 mini, the wide angle lens creates too much distortion to use for portraits. Occasionally I use it for landscape photos, but I wouldn't miss it much.

it's probably better to get iPhone 15 Pro even if second hand but good condition. On swappa you can get it for $550 and iPhone 15 Pro still support apple intelligence.