Garmin HRM 600

General Module dimensions (LxWxD) 2.7" W x 1.2" H x 0.4" D (68.0 x 31.6 x 10.0 mm) Size range XS-S: Strap length: 22"–28" (56–72 cm) Fits chest size 23.5–33.5” (60–85 cm) M-XL: Strap length: 28"–42" (72–106 cm) Fits chest size 31.5–47”(80–119 cm) Weight With M-XL Strap: 2.2 oz (61 g) Module Only: 0.65 oz (18 g) Button Status LED yes (tri-color) Water rating 5 ATM Battery type Lithium ion Battery life Up to 2 months (using 1 hour per day) Detachable module Charging method Garmin proprietary plug charger HRM Connectivity Pairs with Garmin Connect™ App Transmits data over ANT Transmits data over BLE Supports secure BLE connections (with compatible Garmin device) Number of concurrent connections supported ANT: No limit; Bluetooth Low Energy: 3 Activity Tracking Features Step counter Calories burned Distance traveled Intensity minutes TrueUp™ Running Features Running Dynamics (with compatible smartwatch) yes (including step speed loss) Running pace and distance (with compatible smartwatch) Fitness Features Heart rate and HRV (Heart Rate Variability) Activity recording (controlled from Garmin Connect Mobile App) Cardio, Running, Cycling, Swimming, Basketball, Volleyball, Field Hockey, Ice Hockey, Football/Soccer, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball, Mixed Martial Arts, Boxing Team sport speed and distance (with compatible smartwatch or Garmin Connect Mobile App) Basketball, Field Hockey, Football/Soccer, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball Swimming Features Swim interval heart rate stats (with compatible smartwatch) Stores and forwards heart rate data (with compatible smartwatch)