Prepare to meet the best smartphone you've never heard of. The OnePlus One Phone might come from an unfamiliar name, but its guts are top-tier. Powered by a quad-core 2.5GHz Snapdragon processor, it runs CyanogenMod 11S Android, and features 3GB of RAM, 4G LTE connectivity, a 1080p full HD display, an f/2.0, 13 megapixel Sony Exmor camera capable of 4K video in the rear, a wide-angle 5MP camera up front, dual-band WiFi, stereo speakers, and a sleek 8.9mm thin enclosure. But the best part? It's dirt cheap.