The OPPO K3 was announced in 2019, May With 6.5 inches, 104.8 cm2 (~85.5% screen-to-body ratio) AMOLED, Powered by Qualcomm SDM710 Snapdragon 710 (10 nm) and running Android 9.0 (Pie), ColorOS 6, the device delivered smooth performance and multitasking capabilities. while the Li-Po 3765 mAh, non-removable ensured long-lasting usage.