There are at least two problems with most smartphone displays: They can be tough to view outdoors, and they can be power hogs that run down your battery. PocketBook has a solution for both problems… and it comes in the form of a special case for the Samsung Galaxy S4.
PocketBook’s case features a 4.3 inch
E Ink PlasticLogic, 640 x480 pixel black and white display. It’s visible in direct sunlight, and which only uses power when the screen is refreshed.
Theoretically this could let you go weeks without charging your phone, instead of hours (assuming you’ve turned off WiFi and cellular data).
Unfortunately the ePaper screen only works with supported apps — and right now that means it only works with PocketBook’s eBook reader. When you fire up that app it’ll send your content to the ePaper display and let you turn off the smartphone screen. You can then flip pages in an eBook using the phone’s volume keys.
PocketBook hasn’t yet revealed the price or launch date.
This week Alcatel also revealed a smartphone case with an ePaper screen that’s designed to work with the new Alcatel One Touch Hero. But PocketBook’s case has one thing going for it that Alcatel’s does not: It’s designed to work with one of the most popular smartphones already on the market.