Product Level ? do you want the basics, or do you want all of the bells and whistles? You can find a unit that fits your needs and budget.
Power Source ? will you be using the unit away from an auxiliary power source? You might need to carry extra batteries. With some units, you can use a vehicle adapter or AC power source.
Portability ? do you have a preference between a portable or a built-in unit? Some units mount directly in the dashboard of your boat, car, or aircraft.
Mapping Capability ? do you want to know the general direction or street-level details of your chosen path? Map data can include streets, restaurants, tourist attractions, marine data, topography, and so forth.
Mounts ? a mount for your GPS can be useful to keep your hands free while navigating your bike, boat, car, or airplane. Many units come with a mount, and several additional mounts are available.
Ease of Use ?some receivers provide a tutorial or an easy-to-use touchscreen interface. Some even have turn-by-turn voice instructions as you are navigating your route.
Price ? which units fit your price range? An inexpensive entry-level unit can be a great way to enter the GPS world.
Software ? whether you want to save your favorite locations or plan a trip, map software can help. You can use your PC or go directly to your GPS receiver. Your preferenced for map detail and your specific activities determine which software is right for you.
Complementary Navigation Aids
Remember, a GPS receiver is a complement to navigation and should not be the only navigational tool that you use. Using a paper map, a simple compass, and having knowledge of manual navigation is a good, safe practice.
