There's no doubt this unit is ultraportable and it did well in our battery testing, but with a $5499 price tag it's just too expensive.

The VAIO VGN-UX17 is a revolutionary entry into the portable notebook space, offering a fully fledged Windows XP device that is small enough to fit into the palm of your hand. We'd like to see further developments, but it still should appeal to those looking for portability and full PC functionality.

If you need a notebook that will last for four hours while on the road, and double as a media centre once you get back to base, then look no further.

For its size and price this Acer is a great purchase. It has a strong selection of connectivity options crammed into a small package and good battery life as well.

If you need a solid multimedia notebook and don't intend on playing games, the M100 fits the bill nicely.

For the price tag, you're looking at a notebook that will carry you into the future. It's light enough to travel with, powerful enough for most tasks and seems sturdy enough to take a few knocks.

This AMD Turion 64 TL60 based notebook is a powerful machine. The extra 1GB of RAM helps boost its performance, but with all DIMM slots full there's no more room for upgrading and you're essentially looking at the best this notebook can do.

Exceptional battery life and a compact design make the nc2400 a great option for those willing to sacrifice some performance.

This is by far one of the best performing notebooks we've seen. Not only has it equalled the top score of 107 in PC WorldBench 5, but it has done so with very good battery life. This will suit anyone's needs except for people hoping to play the latest games, and the buzzing speaker was an unfortunate blemish on an otherwise excellent unit.

The Lenovo N100 performs well, with its 1.83GHz Core 2 Duo processor and 1GB of RAM offering more than enough power for day to day desktop tasks.

The Aspire 5634WLMi has proved to be a good overall performer and a nice introduction to Acer's Core 2 Duo notebook range. For the price, you're getting an excellent deal.

A solid ultraportable ultimately let down by poor battery life.