Sony Ericsson's second Cybershot mobile phone

The first being the K800. The K550 is a cheaper alternative. It is not as advanced as the K800. It has a 2 megapixel camera and has leds and not a xenon flash. It comes in black or white. I actually quite like the looks of the K550 in both colors. This phone holds the record for the fastest phone entering the market after official announcement by SE. I think it was 2 weeks. Here are two great reviews from mobile-review and gsmarena.

Click for mobile-review

Click for gsmarena