You can make video calls using the main camera on the back of the phone, but face-to-face calls are out, as there's no secondary front-facing video-calling camera on the C903.
Its standard video capture capability isn't exceptional, recording in QVGA resolution at up to 30 frames per second; it plays back smoothly so looks decent enough played back on the phone display but is limited quality-wise when played back on a larger screen.
Video playback of sideloaded or downloaded content is fine on the display, if you don't find the screen size a turn-off. H.263, H.264, MPEG4 and WMV video file formats are supported. Naturally, the full screen can be utilised in landscape mode, and the phone is set up with a YouTube application onboard, so you view clips hosted by that service as well as uploading your own.
You can view streamed or downloaded video and audio content from other services, including mobile network portal offerings and Sony Ericsson's own PlayNow service.
A TV-Out option is available - though no TV-Out cable is supplied.
It may not have the Walkman badge stamped on it, but like most mid-range Sony Ericssons, the onboard music player is a capable player for casual on-the-go listening.
The media player is set up with a similar slick look and feel to the Walkman range, and although there aren't so many track categories – artists, albums, tracks, playlists , audio books and podcasts – and few of the software novelties like SensMe or Shake Control, it does the job efficiently.
The player interface, using the D-pad buttonry, is neat and tidy too.
It's a shame that the supplied earphones are an average type of mobile phone headset, and unlike the Walkman range, don't have a 3.5mm adapter in-line. Again Sony Ericsson has used its standard bulbous multi-connector, plugging the side of the phone. Sound quality through the in-box set is acceptable without being exceptional.
However, by slipping in a spare adapter from a Walkman phone and a decent pair of Sennheiser headphones, we got a much richer performance with greater all-round depth and presentation that was comparable to mid-range Walkman handsets.
A shame, then, that Sony Ericsson doesn't offer this as standard in-box.
With our review sample, we didn't get any synchronisation software. Media Go software is available, however, to download from the support area of Sony Ericsson's website. You could, of course, copy via Bluetooth (A2DP is supported if you want to go wire-free with headphones), or directly to a Memory Stick Micro card.
The phone does, though, include standard-issue FM radio and TrackID song identification applications.