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The Polar H10 Heart Rate Sensor is widely recognized as one of the most accurate and reliable heart rate monitors on the market. Trusted by professional athletes and medical researchers alike, it uses ECG technology to deliver highly precise readings. The H10 connects seamlessly via Bluetooth and ANT+ to fitness apps, sports watches, and gym equipment. With a soft textile strap, non-slip silicone dots, and a firm buckle, it stays comfortably secure during all levels of activity. It’s waterproof up to 30 meters and offers up to 400 hours of battery life, making it ideal for both everyday workouts and endurance training.