Every time that I upgrade a Apple device, I give my mother my old one. She had a iPad 2 which is pretty much useless now so even though I had a 3rd generation 12” iPad Pro, I upgraded for her to a 4th generation. The camera is better but I don’t use it often. There’s not much difference but I love it!
Had the 12.9 inch for over a week, Works well. Faster than the 10.2 and able to speed into web sites I used to have trouble with. I miss the headset plug, the USB plugs, and access to the internal RAM and the access to an Internal Hard Drive, but due to the thin architecture, I might live without some of it. (no, really, I miss the headset plug)