Apple is working on an iPhone with two additional displays that support E-ink or "electronic ink" technology, Report informs, citing MyDrivers.
These displays mimic plain paper with printed letters and are used in e-books because they require much less power.
The company plans to place such displays on the back of the device. One of the displays will be smaller and show such details as the battery charge, mobile signal strength, and other data reflecting the device's state.