I still have my iPhone 1 or original in the closet. I moved from that to the 4, the the 6S with 64 gig, then to the 11 Pro 256 Gig that I have now. It is perfectly functional and fast. The camera is amazing with the three lenses and the overall quality of an image. The camera is the main reason I went for the Pro.
My business partner bought the 13 Pro and the camera is really amazing. It even has LIDAR, so you can map an object, and even do a topo map of your back yard if you are very patient and work hard at it.
I saw a TV program where they were using the LIDAR function to map an bit of the ground where dinosaur footprints were. They could measure the footprints super accurate with the LIDAR.
It is just mind blowing what a telephone can do now days.
This is a "happy snap" one photo of my car with the ultra wide lens. The camera has a "normal" and "telephoto" as well. In reality the normal is the standard wide angle lens that you are used to on a phone, and the telephoto is a "normal" or not wide angle lens. All with motion stabilization.