At this price, and with this feature set, the TomTom ONE blows away the competition.

The XL adds a larger display to the already fantastic ONE unit. The new EasyPort mount and TomTom’s Map Share feature make this an enticing unit.

The latest edition ONE features an even smaller design and an EasyPort mount, and supports TomTom’s Map Share feature. The ONE continues to set the standard for other GPS units to strive for.

The S90i is Navman's cream of the crop, and it is certainly a fine unit. The 2-megapixel camera adds flexibility for using NavPix.

If you currently own a GO 720, then there is no real reason to upgrade, as most of the improvements are software upgrades. If you are looking for a high-end GPS with all of the latest features though, the GO 930 is excellent, if a little overpriced.

The C720t is very similar to the successful C520, so it remains a great unit with plenty of features. Unfortunately, the geotagging feature is poorly implemented, so we're not convinced this is worth the extra cost over its little brother, though the included TMC cradle kit is ideal if you are planning to use the traffic feature.

Although the S150 doesn't have all of the features of its more expensive sibling, Bluetooth hands-free remains, as does the excellent navigational experience.

It may have a hefty price tag but the Triton 2000 offers plenty of features. The touch screen makes this device much easier to use than units that only have a navigational pad.

The gogo CM310 is a very solid navigation device, even though its multimedia features aren't outstanding. But a fast, distinctive interface, an included 1GB SD card and USB card reader and the presence of turning "blinkers" differentiate the CM310 from the crowd.

The S80 is the third product in Navman's S-Series range and introduces text-to-speech technology to an otherwise largely similar unit to the S50.

A larger screen enhances an already enticing package. The N60i is an excellent GPS, with a great user interface and quality maps.

At this price, the LN500 is an excellent choice, especially for a first time user. Text-to-speech technology, solid Destinator software and a stylish, slim design are enough to put this near the top of your list if you are on a budget