Heart rate variability data provides training insights beyond basic heart rate monitoring, revealing recovery status and workout readiness through beat-to-beat interval measurements. The HRM 200 from Garmin captures both standard heart rate and HRV metrics in real time, transmitting this data to compatible devices over ANT+ and Bluetooth Low Energy protocols. The dual-protocol approach accommodates Garmin watches and Edge cycling computers alongside third-party fitness equipment and training apps without requiring separate monitors for different ecosystems.

The system offers both secure and open connection modes selectable via the front-mounted button. Secure connections use encrypted and authenticated transmission supported by newer Garmin devices, while open connections work with all ANT+ compatible equipment and most Bluetooth fitness devices. An LED indicator flashes different patterns to confirm connection status: two flashes every 5 seconds indicates secure mode, three flashes signals open mode. The LED also alerts when battery charge drops low, providing advance warning before power depletion.

Strap sizing spans two ranges to accommodate different chest circumferences. The XS-S option fits 23.5 to 33.5 inch chest measurements, while M-XL extends from 31.5 to 47 inches. The soft textile strap secures the lightweight heart rate module positioned within the strap width rather than protruding as a separate pod. This integrated design reduces bouncing during high-intensity intervals and maintains consistent sensor contact against the chest.... Read More