ZTE Obsidian official Pictures. ZTE Obsidian is a Smartphone of zte. The ZTE Obsidian Android Smartphone. Announced Aug 2015. Features 4.5″ Display, MT6735M Chipset, 5 MP Primary Camera, 2 MP Front Camera, 1800 MAh Battery, 4 GB Storage, 1000 MB RAM. ZTE Obsidian price starts.