The efforts of phone manufacturers to cram more and more pixels into the lenses of the built-in 
cameras is nothing short of relentless. Samsung has hit 10-megapixels with its SCH-B600 phone, but that is of course no more than a technology statement and is only available in Korea anyway. Here in the UK, the best we can get right now is 3.2 million courtesy of Sony Ericsson’s K800i, the first SE phone to carry the Cyber-shot branding.
It is not just about pixels, though, and Sony Ericsson has added in some non pixel-count features which augment the K800i’s potential as a cameraphone. None of what follows is intended to suggest that you can use the K800i as a replacement for a dedicated digital camera for serious photography, but I do think that this handset does wonders for the idea of a mobile phone as a ‘snap and share’ and ‘snap and keep’ and even ‘snap and print’ device.
In hardware terms the K800i isn’t much to look at. Small (105 x 47 x 22 mm), light (115g) and unprepossessing in terms of design with shades of slate grey and silver and white highlights, it doesn’t give the appearance of being a top end handset. TrustedReviews - Sony Ericsson K800i