Oppo A3s official Pictures. Oppo A3s is a Smartphone of oppo. The Oppo A3s Android Smartphone. Announced Jul 2018. Features 6.2″ Display Snapdragon 450 Chipset Dual: 13 MP (f/2.2 AF) + 2 MP Primary Camera 8 MP Front Camera 4230 MAh Battery 64 GB Storage 4 GB RAM Corning Gorilla Glass 3. Oppo A3s price starts.