My Kindle Touch, judging by the plastic, is old, on its second battery. I love that the reading experience has not changed at all in the time I’ve had the device. I never thought of it as a bookshelf, but that’s a great way to put it.

In contrast, my iPhone changes with each update, but often I find not for the better – I hated the new control center at first, and while I made it mostly match the old one, the tap targets are smaller than they used to be, on my 4.7” display.