Raspberry Pi drives daily Calvin and Hobbes comic fun via E-ink display

The Kompakt, has a 4.3-inch e-ink screen with an 800x480p resolution. The monochromic screen leaves room for more battery capacity, as a colorful one typically consumes larger amounts of energy.

These Color E-ink Cases let you put Wallpapers on the BACK of your Smartphone too These cases bring vibrant cyan, magenta, yellow, and black into the picture, transforming the back of your phone into something that feels almost alive.