Newly designed hardware and algorithms help you accurately monitor your heart rate while exercising, maximising your results. Track heart rate with millimetre accuracy, stay protected by intelligent alerts, and train strategically with 5-colour 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. 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 millimetre-level precision in heart rate tracking. 17h Offline Storage: Unrestricted Training, No Data Loss 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. ).

Smart Heart Rate Alert, A Safety Boundary for Every Breakthrough The H613 heart rate monitor is equipped with a heart rate warning function that supports customisable 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. Like an "invisible coach," the H613 heart rate monitor uses data to build the line of defence for sports safety. 4g (sensor only) Battery type: Rechargeable lithium battery Charging method: Magnetic charging Multi-device wireless connectivity: Supports ANT+ and Bluetooth to share heart rate data with up to 3 devices simultaneously Anti-bacterial, anti-odour, and anti-slip design: Keeps the strap fresh and secure during intense or long workouts while ensuring stable, accurate heart-rate tracking. 8 - 8mm curved design conforms to the chest for millimetre-level dynamic tracking and friction-free movement IPX7 waterproof rating: Suitable for intense training sessions, rain, and sweat‑heavy workouts Exceptional battery life: Up to 100 hours of use from a rechargeable lithium battery Multi-size fit: Three size options ensure accurate, comfortable support for athletes of all body types.

• Newly designed hardware and algorithms help you accurately monitor your heart rate while exercising, maximising your results.