ROCKBROS Heart Rate Monitor, Waterproof IP67 Heart Rate Sensor Chest Strap with Rechargeable Battery, Protocol ANT+/Bluetooth, Compatible with iOS/Android APPs

Accurate Heart Rate Monitoring: ROCKBROS HRM828 heart rate monitor chest offers precise heart rate tracking with an average accuracy of ±1bpm, ensuring real-time monitoring during your workouts.
Multi-Zone Heart Monitor: The HRM828 features a 5-color LED indicator for Heart Rate Zone Training, helping you optimize your workout intensity. It also supports heart rate variability (HRV) for advanced insights.
Seamless Connectivity: With Bluetooth 5.0 and ANT+ compatibility, it easily connects to various fitness devices and apps, providing versatile compatibility and dual Bluetooth connections.
Long-lasting Rechargeable Battery: The built-in rechargeable Li-Ion battery provides up to 50 hours of usage on a single charge, reducing the need for frequent battery replacements.
Enhanced Comfort and Customization: It’s 14% lighter and 13% thinner than the previous version, offering a comfortable fit. You can also customize your maximum heart rate for tailored training.