BLU Quattro 4.5 official Pictures. BLU Quattro 4.5 is a Smartphone of blu. The BLU Quattro 4.5 Android Smartphone. Announced Feb 2013. Features 4.5″ Display, Nvidia Tegra 3 Chipset, 5 MP Primary Camera, 1800 MAh Battery, 4 GB Storage, 1000 MB RAM. BLU Quattro 4.5 price starts.