Sony produced the K800i model in mid- 2006 and it was one of the first to feature a three-megapixel camera.
The phone also featured the Memory Stick Duo slot, expanding capacities of which allowed the phone to become a viable MP3 player alternative.
Although the handset did not feature the Walkman branding of it's brothers, most of the functions were retained. Perhaps the real reason was that Sony Ericsson wanted to emphasise the strong imaging featues.
Also known as the K790 (identical handset which supports EDGE instead of 3G).