When you need accurate heart rate and heart rate variability (HRV) data, the HRM 200 heart rate monitor is there to capture it all. Move how you choose. This monitor provides accurate heart rate data for all your activities, including running, indoor and outdoor cycling, strength training and more. The HRM 200 heart rate monitor sends accurate real-time heart rate and HRV data to your compatible Garmin smartwatches and Edge® cycling computers, compatible fitness equipment, the Tacx Training™ app and other apps. The small, lightweight heart rate module fits within the width of the soft, comfortable strap. It comes in 2 sizes (XS–S and M–XL), so you can choose the ideal fit for your body.