This wrist based watch from Garmin lets you monitor your heart rate without a chest strap. With it’s color coded zone indicators, you can now see at a glance how you are measuring up to your capabilities. From warm-up state to red, indicating your moving at your optimum level. The built-in accelerometer, allows it to capture both distance and pace data when you’re running on an indoor track or treadmill, with no need for a separate foot pod accessory. It even doubles as an activity tracker, counting the steps and calories you burn all day. This watch is a must for the serious runner.