BLU Tank 4.5 official Pictures. BLU Tank 4.5 is a Smartphone of blu. The BLU Tank 4.5 Android Smartphone. Announced Feb 2013. Features 4.5″ Display, MT6577 Chipset, 5 MP Primary Camera, 1760 MAh Battery, 4 GB Storage, 512 MB RAM, Scratch-resistant Glass. BLU Tank 4.5 price starts.