The Samsung Galaxy S4 GT959 was announced in 2011, January. Released 2011, February With 4.0 inches, 45.5 cm2 (~57.7% screen-to-body ratio) Super AMOLED, Powered by Hummingbird and running Android 2.2 (Froyo), the device delivered smooth performance and multitasking capabilities. Its 5 MP, AF rear camera captured crisp photos and 720p@30fps video, while the Removable Li-Ion 1650 mAh battery ensured long-lasting usage.