Lenovo’s Tango smartphone: Here’s how the motion-sensing device works

Tango uses software and sensors to track motions and size up the contours of rooms, empowering Lenovo’s new phone to map building interiors (Source: AP)
Suppose your smartphone is clever enough to grasp your physical surroundings – the room’s size, the location of doors and windows and the presence of other people. What could it do with that info?
We’re about to get our first look. On Thursday, Lenovo will give consumers their first chance to buy a phone featuring Google