Track heart rate with millimeter accuracy, stay protected by intelligent alerts, and train strategically with 5-color zone indicators. Seamlessly connect three devices via 3-channel Bluetooth, and choose from 3 tailored sizes for a perfect fit. The H613 heart rate monitor isn’t just a sensor—it’s your invisible coach and performance partner, guiding every step of your journey.

New Algorithm Upgrade, Precise Heart Rate Tracking.

The H613 heart rate monitor features a new-generation self-developed heart rate algorithm. Different from traditional optical sensors that rely on indirect monitoring, it adopts proximal ECG signal direct acquisition technology—to track heart rate fluctuations in real-time. Combined with dynamic noise-reduction filtering technology, it eliminates abnormal interference signals even during high-intensity interval training or sweat-intensive cycling, enabling millimeter-level precision in heart rate tracking. Every heartbeat becomes a reliable data for scientific training.

*This heart rate sensor is for sports use only and cannot replace medical devices.

Features:

• A built-in storage chip supports 17 hours of offline recording. During outdoor cycling, mountain hiking, or gym workouts, the sensor operates independently, with no need for a phone or connected device—continuously tracking heart rate fluctuations.
• The H613 heart rate monitor is equipped with a heart rate warning function that supports customizable safe heart rate thresholds. When the heart rate reaches the preset value during exercise, the sensor triggers a synchronous buzzer alert, sounding a timely "fatigue alarm" to avoid cardiopulmonary overload risks.
• he H613 heart rate monitor supports ANT+ and Bluetooth standard protocols, enabling simultaneous data recording by ANT+ devices and apps with stable transmission. The Bluetooth channel supports up to 3 devices connected simultaneously, eliminating the need for manual device switching or data import. Free form the hassle of data fragmentation of multiple devices.
• The H613 heart rate monitor adopts antibacterial and deodorizing technology, effectively inhibiting microorganisms to maintain long-lasting freshness. 

Heart Rate Strap Wearing Instructions:

• 1.Wet the electrode area on the chest strap.
• 2.Wear the chest strap below your chest and adjust the chest strap to a comfortable length.
• 3.Attach the heart rate module.
• 4.After wearing, the heart rate sensor will automatically turn on and broadcast continuously.