O2 has launched its first hand held computer for pay as you go users.

The Xda Zest has a 2.8 inch touchscreen and comes with the Windows Mobile 6.1 operating system. This lets people access their emails using Mobile Outlook, as well as view and edit Microsoft Office documents in Word, Excel and PowerPoint.

It also comes with a free two week CoPilot sat nav trial with full UK and Ireland GPS mapping. If people want to continue using this then they must pay a one off fee of £50. They can also get additional traffic alerts, which cost £35 for a two year subscription.

The XDA also has a 3 mega pixel camera, mp3 player and FM radio. It costs £249.99 on pay as you go and free depending on the O2 monthly contract.