The O2 XDA Serra was announced in 2008, July. Released 2008, September With 2.8 inches, 24.3 cm2 (~46.7% screen-to-body ratio) TFT resistive touchscreen, 65K colors, Powered by Qualcomm MSM7201A and running Microsoft Windows Mobile 6.1 Professional, the device delivered smooth performance and multitasking capabilities. Its 3.15 MP, AF rear camera captured crisp photos and Yes video, while the Removable Li-Ion 1340 mAh battery ensured long-lasting usage.