Sony shows us it new Digital Music players, the NW-S203F/NW-S205F are for you to enjoy your favorite music while you are running. The players can be used as a stopwatch and it features also Sport Mode. The NW-S203F is 1 GB model while NW-S205F is 2GB. Both of them are waterproof and support WMA, MP3, AAC and ATRAC3 media files. They measure 15x15x96mm and weighs 26g.