Polar H9 HR Heart Rate Sensor

Meet the Polar H9, the high-quality heart rate sensor for all your everyday sports. Its comfortable chest strap provides instantaneous, highly accurate heart rate tracking and precise calorie burn. The ultimate jack-of-all-trades, it connects to fitness apps, sports watches, and gym equipment via Bluetooth, ANT+, and 5 kHz—which can all be active simultaneously. With a 400-hour battery life and a machine-washable strap, the H9 is the reliable, versatile partner for every workout