UMIDIGI A3 Pro 16GB(2019), 5.7-inch Full HD Cell Phones (Proportion 19: 9), Triple Slot, 2 Nano SIMs + 1 MicroSD, Android 9.0 Oreo Cheap Smartphone on Offer, Quad-Core MT6739, 1.5GHz, 3GB + 16GB (Expand 256GB), 3300mAh Battery, Rear Camera 12 MP + 5 MP, Front Camera 8 MP, Dual 4G VoLTE, Global Bands, Double-sided Curved glass 2.5D, Face ID, Fingerprint Unlock.