Microsoft unveils Windows 10 smartphone

New York

MICROSOFT unveiled its first Windows 10 smartphones on Tuesday as it launched a series of new gadgets in a bid to win a bigger share of the competitive mobile market.

The technology giant's two premium Lumia smartphones take aim at popular devices offered by Apple and Samsung and add a few original features, such as a security tool that unlocks the phone by scanning a user's eye. Microsoft also unveiled its first laptop, the Surface Book - which also runs the Windows 10 operating system - and whose 13.5-inch (34 cm) detachable screen can be used like a notepad with a matching stylus.