Google's world-sensing Tango technology is finally here, crammed inside Lenovo's Phab 2 new Pro. Alas, the software and the hardware here fall short. The phone itself is well-built and packs an enormous battery, but an oversized body and a pair of lackluster cameras could spoil things for the average user. Then there's Tango. It's brimming with promise, but bugs and performance hiccups keep the tech from reaching its full potential. We're glad the Phab 2 Pro exists and that it might spur the development of improved Tango-enabled hardware, but this phone is best left to early adopters.