I don’t know what small form factor means
There are no camera controls for changing the resolution size from hi to Lo res.
The phone I bought was in near new condition, is very nice to hold and use, speakers are good, other functions are good. It’s my first iPhone so still learning, but am happy with my purchase.
I really like this phone it’s a nice and easy to work with considering I was told it’s a difficult phone to use. The person/company I bought it from was really good to deal with too