Perfect for crossing over the threshold from city to backcountry, the Garmin nüvi 550 provides a high-sensitivity GPS receiver with turn-by-turn navigation in a ruggedized, waterproof exterior that you can use while hiking, biking, or boating. With its high-sensitivity, WAAS-enabled GPS receiver and HotFix satellite prediction, nüvi 550 locates your position quickly and precisely and maintains i
