Garmin's HRM 600 is a premium heart rate monitor built for performance athletes who are enthused by data and analytics pertaining to their heart rate and heart rate variability.  

It's designed to send accurate and real-time information to your compatible device and apps to better understand your fitness and general health. Its notable features include running dynamics, which grant you information on things like step speed loss and balance, as well as allows to record activities in instances where you can't wear a watch. 

It also records daily metrics such as step count, calories burned and intensity minutes to transfer insight into the achievement of ongoing goals.

Key features:

• Chest based heart rate sensor
• Stores heart rate data
• Running dynamics, pace and distance
• Up-to 2 months battery life (1hr/day use)
  
• Real time data transmission
• Pairs with Garmin Connect™ app

Specifications: 

• Waterproof up to 5ATM
• Rechargeable battery
• Dimensions (mm): 68.0 x 31.6 x 10.0 
• XS-S: Strap length (cm): 56–72 
• Fits chest size (cm): 60–85 
• M-XL: Strap length: 72–106
• Fits chest size (cm): 80-119
• Weight: 18g (module only)
• SKU: 010-13383-01