It offers 256 MB of internal memory (memory is not expandable), MP3/AAC(.M4A)/MIDI playback, FM radio, full internet browsing capabilities, 1.3-megapixel camera (photos/videos), and three separate speakers.

The W600 also feature Sony Ericsson's Java platform 6 (JP-6).

The W600 is a North America-only phone; in other parts of the world, it is replaced by the W550i.

W550i is virtually identical to the W600 except GSM frequency band.

This problem is caused by four loose screws that hold the top half to a swiveling metal plate attached to the bottom half.