Microsoft has revealed the design of the Surface Duo, a dual-screen Android folding phone, which can be opened down the middle like a book.
Two 14.2 centimetre displays can be unfolded to create a small tablet device, which uses Google's Android instead of Microsoft Windows.
The Microsoft Surface Duo has two folding screens
Both screens can run different apps simultaneously, allowing the user to make calls while running a note-taking app, for example.
"We know, scientifically, that you will be more productive on two screens," said Microsoft?s chief product officer Panos Panay.

Microsofts Surface Duo unfolds like a book
A 360-degree hinge allows the screens to close together to form a protective case, or fold back to be use as a palm-held device. The phone can be switched into landscape mode and used as keyboard and screen setup, like a laptop, or as a games controller.
The Surface Duo can be used as a game controller
Although it can take calls, Panay stressed onstage that the device was not a phone but a "Surface" ? Microsoft's new category for personal technology.
The Surface Duo, which will be available to buy in late 2020, was unveiled alongside Surface Earbuds ? wireless in-ear headphones ? at Microsoft's annual hardware event this week.

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