The O2 XDA looks stylish in the all new color i.e. black. The handset is built to support the 2G and 3G networks. It is inbuilt with a memory of 128 MB RAM and 256 MB ROM; even you can expand the storage capacity with the help of micro SD. It only weighs 130grams and has the size of only 15.5mm, which is purely compatible and portable. It has a TFT resistive touch screen which is filled with 65000 colors, which gives a magnificent look of images and pictures. The display has the size of 2.8 inches which has a resolution of 240x320 pixels. The display has a added features like 4-way navigation wheel, TouchFLO finger swipe navigation and Handwriting recognition. The camera is built with 3.15 pixels which is added with autofocus which ensures quality pictures. Video calling facility is available with the handset. It runs on Microsoft Windows Mobile 6.0 Professional which is powered by Qualcomm MSM 7200 400 MHz processor.