Looking similar to its monochrome siblings, the Visor Prism is a highly capable colour Palm OS device. Fitted with a 16-bit colour TFT display, the same as the Pocket PC devices but with a lower resolution, the Visor Prism is slightly heavier at 194g than the monochrome models.

Perhaps even more useful than the colour screen is the Visor Prism's fast 33MHz Motorola Dragonball EZ processor, allowing faster task switching when you have a lot of information stored. This also speeds up Graffiti and unlike other colour Palm devices the Visor Prism isn't noticeably slowed by its colour screen. The screen itself is a 16-bit color, active matrix display that is backlit and is capable of displaying up to 65,536 colors.

The Visor Prism comes with 8MB of RAM and the all-important Springboard expansion slot, for which there is an increasing amount of third-party support.

For power, the Visor Prism relies on an integrated rechargeable Li-ion battery, which gave over 16 hours life when tested. The USB-based HotSync connection and Li-ion battery recharger are combined in a neat desktop cradle and the USB connection has the port that carries the AC adapter cable built in. Four application launch buttons and two scroll buttons allow easy access to the most common PIM functions.

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The Visor Prism is a capable PDA which will suit a few users' requirements, but if you need only basic PIM functionality, then a colour Palm OS device is probably over the top - monochrome will do.