As well as being used for in-store signage, E Ink's technology powers Sony's e-book reader, and in April, Seiko, a watchmaker, unveiled a digital watch built around an E Ink display.
The C and E Series (as well as the G Series for embedded applications like digital signage, set-top boxes, and game consoles and the Z Series, a 6 watt version aimed at passively cooled, sealed applications like tablets) are based on the same 75 square millimeter Brazos die.