Hiking and trekking GPS

The Bottom Line: By itself, the Garmin Nuvi 1690 is merely a solidly performing GPS device, but it earns its keep through the free nuLink service, giving users easy access to up-to-the-minute data for safety, convenience, and entertainment.

Specs: Hiking, Automotive, Navigation instructions, Street name announcement, 6.2 oz

The Bottom Line: The Geomate.jr sits in a class of its own as a child-friendly and easy-to-use handheld, geocaching device.

Specs: Hiking, 3.2 oz

The Bottom Line: The GlobalSat BT-359 Bluetooth GPS Receiver helps turn your BlackBerry Curve into a navigation device.

Specs: 20 channel, Personal

The Bottom Line: If you're an avid geocacher or outdoor enthusiast, the Trimble GPS Pack offers a nice and helpful mobile GPS solution for your Sprint Nextel cell phone.

Specs: Personal

The Bottom Line: The Magellan CrossoverGPS is a versatile GPS, offering navigation help to drivers, boaters, and walkers, but it's tripped up by sluggish performance.

Specs: 20 channel, Hiking, Marine, Automotive, Navigation instructions, 8.5 oz

The Bottom Line: Poor performance mars the otherwise nicely designed and navigation and multimedia-filled Fujitsu Siemens Pocket LOOX N100.

Specs: Hiking, Navigation instructions, 3.9 oz

The Bottom Line: We like the idea of a portable GPS system that can play MP3 tunes, but the Mio 136's performance falls short.

Specs: Automotive, Personal, Verbal signal(s), 5.6 oz

The Bottom Line: The Cobra GPS 100's attractive price tag doesn't make up for its lackluster performance.

Specs: 18 channel, Hiking, 5.3 oz

The Bottom Line: While not as expensive as similar handheld units, the Cobra GPS 500 suffers from a weak receiver and a few design flaws.

Specs: 18 channel, Hiking

The Bottom Line: Magellan's Meridian Platinum is a great choice if you're looking for a standalone GPS device that doesn't skimp on features.

Specs: 12 channel, Hiking, 8 oz