Versatality: Polar OH1 allows you full freedom of movement regardless of your sport. Wear Polar HR monitor either on your arm when rowing, cycling, running or training indoors or against your temple when swimming
Comfort: The soft textile armband keeps Polar OH1 snug around your arm. The swimming goggle strap clip, included in the Polar OH1 + package, keeps Polar HR sensor steadily in place when you swim
Connectivity: Pair HRM with the free Polar Beat fitness app, Strava or Nike, your sports or smart watch (Polar, Garmin, Apple, Suunto and others), bike computer or gym equipment (Peloton) via Bluetooth or ANT+ simultaneously

【Accurate Fitness Tracker】: The micro voltage signal generated by the heart beating is amplified and processed directly to get the heart rate value instead of monitoring the blood flow through optical sensors and then converting it with software, which leads to the problem that the accuracy is affected by light and skin. Fitcent CL820W heart monitor sensor will accurately track your steps,calories consumption,distance traveled, heart rate. through this accurate measurement technology.
【BLE , ANT+ and 5.3Khz Connectivity】: Using bluetooth high frequency transmission, using the existing international standard bluetooth protocol, through the smart phone widely used BLUETOOTH 5.0 and ANT+ to transmit the heart rate signal, Iphone and Android mobile phones are widely applicable, reduce your compatibility concerns. It is also compatible with a non-coded 5.3kHz treadmill.
【Wireless Charging】: FITCENT heart rate monitor chest strap comes with a rechargeable battery with the included wireless dock. After 1.5 hours full charged, allows you to work out an hour per day up to 30 days with single charge.