Garmin Colorado 400t

Handheld Garmin Sports Click-Wheel Nav, 3-D View, Topo Maps

The name "Garmin" is synonymous with "GPS," the way "Q-Tip" is synonymous with "auditory hygiene." And the Colorado 400t doesn't let us down: Its light, curved form fits easily in your palm. Navigating the great-looking interface one-handed feels easy with the help of a soft click-wheel. 3-D view helps you visualize vertical grade — as in, "We have to climb up ... that?" But included trip and waypoint software isn't Mac-compatible, and the Mac packages online are cumbersome and hard to use. Even slight bumps in travel made it short out. Garmin, listen, you're great. Now stop resting on your laurels, and reeeeally wow us.

WIRED Unbeatable form factor. Click-wheel makes navigation more than effortless. Included carabineer means accidental drops are a rare occurrence. Preloaded topo maps preprogrammed with local haunts we're predisposed to frequenting. For free. Preposterous!

TIRED Use that 'biner — a drop of about 2 feet killed the power. Dig out your spare PC, as Mac software is lacking. Despite that road-lock feature, an average of 18-20 foot accuracy makes it disorienting and dangerous to use while driving.

• Electronics: GPS Travel Companions
• Manufacturer: Garmin
• Price: $640