I've been using my current phone since fall 2021 ( a little over 3 years) and someone else had previously used the phone for a bit before I got it from them. Still working okay for now
Last year, I got my newest phone, a standard iPhone 15, to replace my old iPhone 12. The screen is brighter, and the camera is better, but otherwise there aren't any changes I considered major from the switch.
my current one is one that I got in April 2022, so almost three years ago. my previous phone was from 2016, and I used it for six years; I'll probably end up using this one until it gives up the ghost as well haha.
the only gripe that I have with this one (a Galaxy S22 FE) is that the camera is awful. if I get a new one I will make sure that it has a better camera on it.