InkCase i7 Plus: iPhone 7 Plus Case with 2nd E-ink Display
So you wish your iPhone had a second display on its back? The InkCase i7 Plus can be just what you need. It puts a 5.2″ e-ink screen on the back of your phone, allowing you to see photos, check to-do lists, read e-books, and a whole lot more. The case is waterproof and protects your phone. Its battery lasts up to 5 days.
The InkCase i7 Plus features a Carta 1.2 E-Ink screen, so you can use it to read inside or outdoors. The companion app lets you edit and send photos from your phone easily.