The OPPO A3s was announced in 2018, July 13 With 6.2 inches, 95.9 cm2 (~81.2% screen-to-body ratio) IPS LCD, Powered by Qualcomm SDM450 Snapdragon 450 (14 nm) and running Android 8.1 (Oreo), ColorOS 5.1, the device delivered smooth performance and multitasking capabilities. while the Li-Ion 4230 mAh, non-removable ensured long-lasting usage.