The Garmin HRM-Dual measures both heart rate and heart rate variability, the latter of which is a measure of the variation in time between each heartbeat. Garmin uses this score t ...

and is one more than you get on the more basic Garmin HRM-Dual. According to the brand, the battery will last for one year, when being used for one hour per day, and the battery is contained ...

Designed and purpose-built for women, the Garmin HRM-Fit is a clever heart rate strap that gives you all the workout data you need. It’s easy to use and comfortable to wear; it even collects ...