Take your ride to the next level with the Edge 205Garmin's GPS-enabled personal trainer and cycle computer. Perfect for touring and the trails, the lightweight Edge is the ultimate fitness partner. With the easy-to-use Edge 205 on your bike, you always know where you're going and how far you've gone. For advanced cyclists, the Edge 305 is available with either a heart rate monitor or a wireless speed/pedaling cadence sensor to help you achieve your personal best.