I am not a fan of MacOS. Is this a thing that translates to iPhone?

I have given up on the dream of a phone that is only used for calls.

I'll end up using it for apps and other time-wasting nonsense, I'm sure. It'll be nice to have a camera on hand for a lot of things in my job.

I guess I have a question about optimal size. I'm not trying to carry a tablet in my pocket, but I don't want something tiny, either. What's a good size for a phone?