How Do You Evaluate Handheld GPS Units?
Global positioning systems make real-time navigation possible. All GPS units will have some basic features in common such as the ability to set waypoints or create routes. Waypoints are user-set locations such as trail heads or points-of-interest that user may want to record. When evaluating a handheld unit, first examine the exterior. Hold the device to get a feel for its weight and usability. Make sure the unit is easy to handle and use. Decide on the primary use for the GPS unit. The primary use dictates what features are most important. Some units, for example, are considered “geocache-friendly,” making them a natural choice if this is the main use. Outline a routine use of the GPS unit. If the device will be used for long periods of time, you may prefer a unit with longer battery life or one that is lightweight. Hold the device with batteries loaded to best judge its weight. Consider your map needs. Some GPS units will have pre-loaded maps in internal memory. These maps typically
