GPS (Global Positioning Systems) provide a you with more than just data on where you've been and where you're going. A cycling GPS can provide you with elevation changes, time between waypoints, heart rate, cadence, and other useful information.
A GPS made for a car will not necessarily have the capabilities a cyclist needs. It will likely have features a cyclist doesn't need. However, many GPS models are made with dual-use in mind for both handheld and cycling. Cycling GPS systems mount to your handlebars and provide you with useful information at a glance so you can get your eyes back on the road.
SPOT GPS provides lifesaving communications technology that allows users to communicate from remote locations around the globe.
Garmin GPS products for cyclists have innovative features and designs that leverage more than 20 years of experience making navigation products for auto, outdoor, fitness, marine and general aviation.