The Huawei P20 Pro was announced in 2018, March 27 With 6.1 inches, 93.9 cm2 (~82.0% screen-to-body ratio) OLED, Powered by Kirin 970 (10 nm) and running Android 8.1 (Oreo), planned upgrade to Android 10, EMUI 9.1, the device delivered smooth performance and multitasking capabilities. while the Li-Po 4000 mAh, non-removable ensured long-lasting usage.