This is the product's overall performance score, based on key tests conducted by our industry experts in the CHOICE labs.

This is the product's overall performance score, based on key tests conducted by our industry experts in the CHOICE labs.

See reviews below to learn more or submit your own review. How do I know I can trust these reviews about TomTom Portable GPS? How do I know I can trust these reviews about TomTom? 4,537,880 ...

Concord, MA – January 21, 2010 – TomTom, the world's leading provider of navigation solutions and ... exceeded the speed limit, data from GPS users show that, overall, drivers tend to stay ...

Adding a motorcycle GPS to your riding repertoire can expand your horizons beyond your imagination. There are products ...

Photo: BMW What it is: A stand-alone device from companies like Garmin or TomTom that attaches to your dashboard or windshield and ... Pros: They’re free, and like the newest built-in navigation ...

Long before ships relied on GPS to determine their location – and even before radio navigation systems such as LORAN, vessels relied on a still impressively sophisticated means of determining ...

TomTom has gone it alone with its latest GPS tracking watch - the TomTom Runner ... TomTom MySports has been based on the MapMyFitness system so if you're an existing MapMyFitness user, you ...

What’s the first thing you think of when you see an old GPS navigation system for sale cheap at a garage sale? Our research indicates that 100% of people would wonder if it could run Doom ...

A system that improves the accuracy of the GPS satellite navigation system. A satellite's positioning accuracy is impeded by errors in its clock and signal delays caused by atmospheric conditions.

If you're traveling to a new place, would like to shorten your daily commute, or want to find the lowest gas price, check out the best map apps we've tested.

Factory-installed navigation systems offer convenience and integration, but can vary in accuracy. Factors affecting accuracy include map quality, GPS signal strength, traffic data, and system design.