Oppo R9 5.5" 13MP Dual SIM 4GB RAM 64GB Unlocked 4G Smartphone (Gold) Android OS, v5.1 (Lollipop), Non-removable Li-Po 2850 mAh battery 5.5 inches AMOLED capacitive touchscreen, 16M colors Dual SIM ,13 MP 64 GB, 4 GB RAM, microSD, up to 128 GB 2GGSM 850/900/1800/1900 2GCDMA1X BBC0 3GWCDMA B1/2/5/8 3GTD-SCDMA B34/39 3GCDMA EVDO BBC0 4GTD-LTE B38/39/40/41 4GFDD-LTE B1/3/5 4G+TD-LTE B38/39/40/41/39+41 4G+FDD-LTE B1/3