Sony C903 Mobile Phone on 3 Pay Monthly � The Sony Ericsson C903 Mobile Phone is a slim designed slider phone. The phone comes with a 2.4 inches TFT screen. Most noticing feature of the Sony C903 Mobile is the 5 MP camera, which gives a perfect shoot of the image. Always excelling in the audio quality, you can once again experience the best sound quality through the Music player and the FM Radio in the Sony C903 set. The phone supports an expandable memory of 16 GB for massive storage.