Loading... Please wait...Other than shoes, there are few pieces of equipment more important to a runner than a good running watch. Two key features to look for in a running watch are a heart rate monitor and a chronograph with memory function. Suunto heart rate monitor watches employ a slim, comfortable chest strap to monitor your heart beat and send data wirelessly to the watch, for display and memory storage. You can programm in your upper and lower heart rate limits and be alerted if your heart rate goes outside that range - as well as keep track of your highest, lowest, and average heart rate while you're running.