A premium chest-strap heart rate monitor that sends real-time heart rate and HRV to compatible Garmin watches, Edge bike computers, apps and gym equipment, and can record activities on its own when you can't wear a watch.

• Real-time heart rate and heart rate variability (HRV)
• Rechargeable battery with up to 2 months per charge
• Records heart rate during swimming and team sports, syncing to Garmin Connect afterward
• Running dynamics with compatible Garmin watches
• Machine-washable strap with removable module
• Size: M-XL strap