I just finished restoring and upgrading my iPhone 5s to iOS 11.1. This took many tries during which I was told, in mid-fix, that my phone was disconnected. Now that all the apps are restored, I'll see how it goes, but I'm still not happy with the small size, slowness and poor photo colors that are now a feature of this old phone. 

I want a bigger phone, and one with a much better camera. My wife has a 6s and that's already a lot better. But I've A/B'd that with a 7 and liked the colors in the 7 much better. I haven't A/B'd the 7 with the 8, and all the comparisons I've seen so far have been between videos, and I care much less about that than I do about still photos.

Mostly what I'm interested in is differences in photo quality.

I'm also not taking Androids off the table, though I'm inclined to stay with the iPhone system.