Garmin HRM 600

Sends accurate real-time heart rate and HRV data to compatible Garmin smartwatches and cycling computers, fitness equipment, and apps
Comfortable machine-washable strap is to be had in two sizes (XS–S and M–XL) for the most ideal fit in your body type
Take note how much you slow down when your foot hits the ground with step speed loss, and enhance your running form with additional running dynamics, including stride length, vertical oscillation and ground contact time balance (requires compatible smartwatch)
Right through activities where you’ll’t wear a watch, such as team sports, HRM 600 will record the workout and sync data, including heart rate, calories, speed, distance and more, immediately to the Garmin Connect smartphone app
Tracks day-to-day metrics, including estimated steps, heart rate, calories burned and more, and syncs that data immediately to the Garmin Connect smartphone app
For indoor track and treadmill runs, HRM 600 sends pace and distance on your compatible smartwatch
Provides and stores accurate heart rate data Right through swim activities and syncs it on your compatible smartwatch after you save your workout
As much as 2 months of battery life with a rechargeable battery