Handheld GPS devices gather information from satellites to determine one's location. This can be helpful in finding which streets to take or what coordinates on a map the user is at. Because of how satellite transmissions work, handheld GPS devices are limited in their use to areas where a clear signal can be received.

What consumers should look for in a handheld GPS is screen size and clarity, battery life and quick connectivity. Those with more money to spend should also look for more detailed maps and should be aware of other extras like mp3 playing capabilities.

The cheapest units can be as low as $200 while the more fancy devices can get as high as $700. Cheaper models get the job done, and most of the more expensive units are merely adding bells and whistles.

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  3. GPS Device Buying Guide: Powered by ConsumerGuide and HowStuffWorks