The device offers one-of-a-kind features such as the wireless design
, the heart rate and zone display, and the up-to-date alerts when you've reached the minimum or maximum heart rate that's set. Same as the other models, it's able to evaluate time, distance, pace, altitude, and calories. However, what makes it different is its capability to also measure heart rate. It also works with Garmin speed/cadence sensor. Indeed, Garmin 305 is the Best device to Buy.