Garmin HRM 600 Heart Rate Monitor HRM 600, the premium heart rate monitor, is built for data-driven performance athletes. It provides highly accurate heart rate and HRV data to compatible Garmin smartwatches and cycling computers, equipment, and apps. Dial in your running with running dynamics, including step speed loss to understand how much you slow down when your foot hits the ground (with a compatible smartwatch). HRM 600 is easily adjustable and available in two sizes so it’s comfortable to wear during any sport. And when you can’t wear a watch, you can record your activity on the heart rate monitor and sync data, including heart rate, calories, speed, distance and more, directly to the Garmin Connect™ app. After pushing hard, easily remove the module and throw the strap in the wash. HRM 600 has up to 2 months of battery life with a rechargeable battery. Accurate TrackingRecords heart rate and HRV data, even without a watch Advanced MetricsIncludes step speed loss and running dynamics (with compatible Garmin watches) Rechargeable ConvenienceUp to 2 months of battery life and a washable strap Features Highly accurate heart rate and HRV data Running dynamics, including step speed loss Stores activity data when not wearing a watch Syncs to Garmin Connect™ app Rechargeable battery – up to 2 months of life Washable, adjustable strap in two size options Tri-color status LED Water rating: 5 ATM Specifications Module size: 2.7" W x 1.2" H x 0.4" D (68 mm x 31.6 mm x 10 mm) Unit weight: 2.2 oz (61 g) Battery type: Rechargeable (Garmin proprietary plug charger) Battery life: Up to 2 months (1 hour per day) Concurrent connections: Bluetooth Low Energy (3), ANT+ (Unlimited) Sizes: XS-S (22–28"), M-XL (28–42") Fits chest size: XS-S (23.5–33.5”), M-XL (31.5–47”) Country of origin: Taiwan