The OPPO R2001 Yoyo was announced in 2014, May. Released 2014, May With 4.7 inches, 60.9 cm2 (~63.3% screen-to-body ratio) IPS LCD, Powered by Mediatek MT6582M (28 nm) and running Android 4.2.1 (Jelly Bean), the device delivered smooth performance and multitasking capabilities. Its 5 MP, AF rear camera captured crisp photos and 720p video, while the Li-Ion 1900 mAh, removable ensured long-lasting usage.