All GPS kits

The Bottom Line: For Treo 680 and Treo 700p owners who want a navigation and hands-free solution, the Palm GPS Navigator Car Kit offers ease of use and accurate directions, but once again, we wish it were less expensive.

The Bottom Line: For the true road warrior, the Palm GPS Navigator Smartphone Edition can take some of the stress out of your busy on-the-go lifestyle by bringing accurate driving directions right to your Treo; just be prepared to pay a price.

Specs: GPS kit, Built-in

The Bottom Line: With great mapping features and advanced services, TomTom's latest navigation kit for PDAs and smart phones approaches GPS greatness.

Specs: GPS kit, 2.4 oz, 20 channel, Built-in

The Bottom Line: Though it's expensive, GPS Navigator by PalmOne provides accurate driving directions for Zire 72 and Tungsten T3 handheld owners.

Specs: GPS kit, 12 channel

The Bottom Line: Streets & Trips 2005 with GPS locator is fun and inexpensive, but it's awkward and needs voice navigation to be a full-fledged alternative to other GPS-based vehicle navigation systems.

The Bottom Line: The new and improved CoPilot Live takes an already user-friendly in-car navigation package and makes it even easier to use.

Specs: GPS kit, 12 channel, Built-in

The Bottom Line: The Dell GPS Navigation System's accuracy and ease of use take the stress out of road travel for Axim owners.

Specs: GPS kit, 4 oz

The Bottom Line: Though a bit pricey, the iPaq Navigation System's strong reception and easy-to-read maps get you on the road to a smooth trip.

Specs: GPS kit, 3.4 oz, Built-in

The Bottom Line: A pricey but powerful wireless add-on for Pocket handhelds and laptops, the Belkin Bluetooth GPS exceeds expectations.

Specs: GPS kit, 0.55 lbs, 12 channel, Detachable

The Bottom Line: TeleType's GPS Bluetooth Receiver has everything you'll need for wireless navigation on your PDA, but the mapping software could be more user-friendly.

Specs: GPS receiver module, 1.9 oz, 12 channel, Built-in