Apple could use color EPD displays from Chinese company E Ink, as this technology would be much more energy efficient than other forms of display technology. At somewhere around 20 inches ...
Not only will a phone strap make holding your phone easier, it'll make sure you won't drop your phone on your face mid-scroll ...
The Boox Note Max is a 13-inch e-reader with a sharp display, an extensive feature set, and one of the best digital pen experiences I've encountered.