Stylish, small and simple to use - there's nothing wrong with the Z22. And there's plenty to like about that price, too. If you want a PDA, you'll struggle to match these levels of quality and value.

The Zire 31 is a no-frills handheld for those on a budget.

The low-cost Palm Tungsten E2 is a comfortable entry level model for business users.

While for many users a PDA is a superfluous device these days, for those that want an extremely quick, fully featured handheld PC then HP's iPAQ 112 is towards the top of the pack.

A PDA dressed in a portable media player's clothing, the rx4240 is an attractive device that is equally good for productivity and mobile entertainment, but the lack of internal memory is a downside.

Considering the many features packed into its diminutive chassis and its snappy performance, the Zire 72 is a bargain.

Performing well in a number of areas, HP's iPAQ 312 is a bit of a jack of all trades. While the media playback features are a bit of a gimmick, the GPS is robust and the Bluetooth hands-free functions well, making this a solid choice for users who have yet to jump on the GPS bandwagon.

A PDA dressed in a portable media player's clothing, the rx4540 is an attractive device that is equally good for productivity and mobile entertainment.

If you are wiling to sacrifice storage space and power for a low price point, then this is the PDA for you.

This PDA is fast, powerful, and equipped with both Bluetooth and Wi-Fi, but the biometric fingerprint reader doesn't work as well as it should.

Solid, but not outstanding, the HP iPAQ hx2190 offers mobile users some key improvements sure to make life easier.