Garmin has combined accurate heart rate monitoring with running dynamics analysis in this model. While wrist-based heart rate monitoring is constantly developing, a heart rate belt is more reliable and reacts faster, as it picks up the very signals that directly drive your heart. *Tip:* Follow the cleaning instructions you'll find in the user manual. As you use the belt, along time your skin and sweat wear the belt's contacts out. The cleaner you keep your belt, the longer it will serve you. - Sends real time heart rate data to a wrist unit, gym equipment and apps - Easy to change, long-life battery (up to 1 year) - With compatible Garmin units, you'll get pace and distance data even for indoor running - Bluetooth Low Energy and ANT+ connections for Garmin smart watches and cycling computers, compatible gym equipment, Tacx app and other apps - The HRM-Pro Plus records running dynamics, such as vertical movement, ground contact time, stride length and vertical proportions, making it e