The Garmin Edge 550 Computer is a compact computer for cycling. Train on the road, at home (smart trainer compatible), on your own, or on a group ride. While small and inobtrusive, the bright display is easy to read when you're on the move. Get training tips, performance notes, maps, hazard alerts, and even stay connected with your friends. While some features may require a compatible heart rate monitor or power meter, your cycling adventures are about to get a huge upgrade.