Up close and personal with the first Tango phone

By now, you probably know the broad strokes about Tango: It's a suite of technologies that combines computer vision, motion tracking and depth perception to help a device figure out exactly where it is and how it's moving through space. So far, the Tango foundation has been used, among other things, to give us turn-by-turn directions inside a museum and let us play with virtual puppies. The Pro features a 6.4-inch Quad HD IPS screen that will stretch pockets and hands alike. In fact, the phone is so big that the thought of using it as my daily driver is just absurd. We've seen huge phones before -- here's looking at you, Xperia Z Ultra -- but the Phab2 Pro is less of a big handset than it is a small tablet. That shouldn't come as a surprise, either.