I have a Boox go color 7 that I have in my pocket a lot. I made a little leather sleeve for it and am frequently tempted to add a couple pockets to the flap and make it my permanent "wallet". It's better for reading, anyways, but there's a lot of software I use that's only on iOS without an acceptable Android substitute, and it's also not a phone. (I'd also be perfectly happy with the watch as my "phone" and to carry two small tablets).

But you just can't fit much on a phone screen.