The Navigator 7000 is outstanding for road safety thanks to its "Road Sense" subscription, but its navigational performance could be improved.

The GARMIN StreetPilot is a reliable and easy-to-use GPS unit.

This tiny handheld GPS receiver includes maps, intelligent routing algorithms, an intuitive display, and can be programmed with custom data sources or integrated into enterprise applications. Quest is a good alternative to more complex location-aware platforms.

The nuvi 660 adds a larger display and Bluetooth hands-free calling to an already solid previous unit, but some small deficiencies still remain. Best of all though, the pricing difference between models is minimal, so the 660 is definitely worth the extra money.

The RIDER 2nd edition offers several significant improvements over its pioneering predecessor, including a superior headset and bike mount. While a few flaws remain, it has managed to avoid most of the key obstacles that hamper other units.

You only have to look at the absence of Bluetooth and WiFi support to see that the n35 is a navigation device first and a handheld second.

While not as visually appealing or easy to use as other GPS unit we have reviewed, the GPS on the 169 did its job. The PDA however, lacks Bluetooth and Wi-Fi support.

The AVIC-F500BT is a unique but welcome addition to the navigational market. This is the perfect device if you want to add the latest in navigation and entertainment to your vehicle without altering your existing stereo.

With an excellent map display, easy-to-use interface and clear audio instructions, the TomTom GO 300 has nearly all the features drivers need in a GPS system.

If you can overlook the size and the rather basic entertainment features, this GPS does the job and for what it offers, the MMP-501 comes in at a very respectable price point compared with many other units on the market.

A solid and portable GPS navigator.

Magellan's CrossoverGPS unit is a fair effort, but it's lacking in some areas. If you do your fair share of walking and boating though, this is definitely worth a look.