The Nokia Lumia 800 was announced in 2011, October. Released 2011, November With 3.7 inches, 39.0 cm2 (~54.7% screen-to-body ratio) AMOLED, Powered by Qualcomm MSM8255 Snapdragon S2 and running Microsoft Windows Phone 7.5 Mango, upgradable to 7.8, the device delivered smooth performance and multitasking capabilities. Its 8 MP, AF rear camera captured crisp photos and 720p@30fps video, while the Non-removable Li-Ion 1450 mAh battery (BV-5JW) ensured long-lasting usage.