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Best Seller | POLAR H9 Heart Rate Sensor - ANT + / Bluetooth - Waterproof HR Monitor with Soft Chest Strap for Gym New Polar H9 Heart Rate Sensor Out Now! Polar H9 is the ideal jack-of-all-trades sensor for all your everyday sports. Get reliable calories and heart rate thanks to chest strap measurement. Battery life is 400 hours. Polar H9 heart rate monitor works... more | compare prices |
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