Enhance your triathlon experience by pairing HRM-Tri with Forerunner 920XT. Stores heart rate data when underwater, then forwards it to the 920XT. Garmin's smallest and lightest module fits within the width of the strap. Soft, rounded edges and covered seams make the strap super-comfortable out of t...

Train even better with heart rate by pairing HRM-Swim with Forerunner 920XT. The durable, non-slip strap keeps the heart rate monitor in place, even during wall push-offs. Sleek design causes minimal drag and stores heart rate data as you swim. Out of water, real-time heart rate, interval summaries...