theultralighthiker.com
At Last an E-ink Smart Phone:Over 1,000 posts about ultralight hiking, backpacking, bushwalking, sambar deer hunting, canoeing, pack rafting, tips, tracks, trails, adventures, gear, reviews...
I think e ink is all you need in a hiking phone as long as it has a reasonable camera (or perhaps none at all) and can display maps and books well enough. The trade-off of not having to charge for …