The O2 XDA Stellar is a perfect example of how a high-class technology can bring the best in a mobile phone. This phone has a 2.8 inches TFT touchscreen with 65,000 colours and has a resolution of 240 x 320 pixels. The phone comes with Handwriting recognition and QWERTY keyboard that make it one of the most easy-to-use and sought-after phone. It operates on the Microsoft Windows Mobile 6.0 Professional operating system to deliver seamless mobile solutions besides having a 400 MHz Qualcomm MSM7200 processor. This O2 product comes with a 3.15 MP camera having a resolution of 2048 x 1536 pixels with autofocus and a secondary VGA videocall camera. For the business users, this phone has Pocket Office (Word, Excel, PowerPoint, PDF viewer) and Business card reader functionalities. GPRS, EDGE, WLAN, USB, Bluetooth and 3G HSDPA help the mobile users to view, edit and share files and use the Internet.