The OPPO F1s was announced in 2016, August 03. Released 2016, August With 5.5 inches, 83.4 cm2 (~71.0% screen-to-body ratio) IPS LCD, Powered by Mediatek MT6755 (28 nm) or MTK7650 (28 nm) and running Android 5.1 (Lollipop), upgradable to 6.0 (Marshmallow), ColorOS 3, the device delivered smooth performance and multitasking capabilities. Its 13 MP, f/2.2, 1/3", PDAF rear camera captured crisp photos and 1080p@30fps video, while the Li-Po 3075 mAh, non-removable ensured long-lasting usage.