About this item

• ±1BPM Optical Heart Rate Band and Calorie Tracker: CooSpo HW9 heart rate band uses optical heart rate technology to provide accurate heart rate and calorie burned 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, which shows your heart rate zone at a glance, so you can optimize intensity levels at the right time. It also supports heart rate variability (HRV) function.
• Comfort to wear: The cardio-armband is a great alternative to chest cardiac straps and wrist devices. The Armband HRM sensor allows maximum freedom of movement and works in countless different sports. HW9 with soft, breathable and adjustable band for all workouts and exercises.
• Connectivity: Bluetooth 5.0 and ANT+ ensure the ability to connect the heart rate sensor of the CooSpo HW9 armband with GPS bike computer/APP/fitness devices/running watches. You can have two simultaneous Bluetooth connections with the latest technology.
• Supports Maximum Heart Rate Customization: The Heartool/Coosporide app allows you to customize the true value of your maximum heart rate with HW9, so you reach the true heart rate zone, optimizing intensity levels at the right time. (The default maximum heart rate was 200bpm)
• Maximum Heart Rate Vibration: When the heart rate exceeds the maximum heart rate value or the personalized value, the HW9 armband emits a vibration warning, ensuring the safety of your workout.
• Rechargeable Battery: Provides up to 35 hours of battery with fast charge and magnetic charger. To extend battery life, use a DC 5V power adapter or computer USB port for charging.