HRM-Run heart rate monitor provides the most advanced running metrics to high-end Garmin Forerunner running watches. The small, lightweight modul...

Monitor speed and cadence when running indoors. Now you can get all the information you need on your workout even if the weather doesn't let you he...

Seller Refurbished (NEW) comes in easy to open packaging. Made specifically for triathletes, this is Garmin's smallest and lightest heart rate moni...

Pair the HRM-Tri and HRM-Swim with compatible devices for a more precise approach to training and racing. The HRM-swim is non slip and great for po...