Calorie Counter and Heart Rate Monitor

✅± 1BPM OPTICAL HEART RATE ARMBAND & CALORIE TRACKER: The COOSPO HW9 heart rate armband uses optical heart rate technology to provide accurate heart rate and calorie burn data, with a monitoring error of ± 1BPM.

✅HEART RATE ZONE MONITORING & HRV FUNCTION: HW9 features a 5-color LED indicator light for Heart Rate Zone Training, showing your heart rate zone instantly so you can optimize your intensity levels at the right moment. It also supports Heart Rate Variability (HRV) function.

✅COMFORTABLE TO WEAR: The heart rate armband is a great alternative to chest straps and wrist-based devices. The armband HRM sensor allows maximum freedom of movement and works across various sports. HW9 comes with a soft, breathable, and adjustable band for all training and workouts.

✅CONNECTIVITY: Bluetooth 5.0 and ANT+ ensure you can connect the COOSPO HW9 armband heart rate sensor to GPS computers/apps/fitness devices/running watches. You can have two simultaneous Bluetooth connections with the latest technology.

✅MAX HEART RATE CUSTOMIZATION SUPPORT: The Heartool/Coosporide app allows you to set your true maximum heart rate value with the HW9, helping you reach your actual heart rate zone so you can optimize your intensity levels at the right time. (Default max heart rate is set to 200 bpm)

✅MAX HEART RATE VIBRATION ALERT: When your heart rate exceeds the maximum or your custom heart rate value, the HW9 armband provides a vibration alert, ensuring safety during training.

✅RECHARGEABLE BATTERY: Provides up to 35 hours of battery life with fast charging and a magnetic charger. To extend battery life, use a DC 5V power adapter or a computer USB port for charging.

✅RECOMMENDED APP: COOSPO Bluetooth 5.0 heart rate armband is compatible with 200+ apps, such as Wahoo Fitness/Strava/Polar Beat/DDP Yoga/HR Monitor/CooSporide/Elite HRV/Zwift.