Project Tango is a technology platform from Google that allows developers to create experiences that incorporate things like indoor navigation, 3D mapping, and augmented reality. The project uses computer vision toe enable devices to see the world around them without relying on GPS. Two devices use to demonstrate Project Tango has been the discontinued Peanut phone, and the 7-inch Yellowstone tablet.
Unlike other devices — including VR accessories — Project Tango allows is designed to run on a standalone phone or tablet. This works by integrating motion-tracking (using the accelerometer and gyroscope), area learning and depth perception.
During CES 2016, it was announced that Google would be working with Lenovo to bring a smartphone with Project Tango technology to market.