If I didn't work for a telco, I would still carry a basic phone.
Besides that, I have very few apps installed on my phone. I basically use it as a mobile web browser from time to time.
I'm told by people who do have some actual talent that a small fraction of the pics I take are good.
For this picture, I was actually riding my bicycle, and snapped two dozen shots over 30 seconds.
That said, I have to admin that the "features" I'm missing are a camera and a map.
I used it for telling time, taking photos of maps and other useful notes, etc. Super useful.