"A slimmed-down version of Sony Ericsson's hugely successful K800i, the K810i shares the amazing 3.2 megapixel Cyber-Shot camera with autofocus and bright xenon flash that made the K800i arguably the best camera phone so far. Also comes with a music player, 3G video calling, expandable memory and wireless Bluetooth connectivity. The K810i can be your digital camera and MP3 player as well as a mobile phone. It costs a little more than the K800i but is slimmer and lighter. Available in black, red or ivory." 5/5
Although some other reviews have highlighted the joystick to be difficult to use, and that it is merely a k800i (£30 cheaper) in a new casing, I still think this is a pretty good deal.
The few reviews I could find of Prepaymania all seemed positive:http://forums.moneysavingexpert.com/showthread.html?t=761273http://forums.moneysavingexpert.com/showthread.html?t=702361http://www.pricerunner.co.uk/retailer/28454/reviews