Compatible heart rate sensors All Polar heart rate sensors can be worn in water. Only sensors with GymLink transmission detect h
![Heart Rate Monitor Wrist Band Arm Belt Bluetooth 4.0 ANT Cycling Accessories Cadence Sensor for Wahoo Zwift GPS Bike Computer Heart Rate Monitor Wrist Band Arm Belt Bluetooth 4.0 ANT Cycling Accessories Cadence Sensor for Wahoo Zwift GPS Bike Computer](https://ae01.alicdn.com/kf/Hcc93e1fe4fc24d1aa5e5030f4e53d9ebf/Heart-Rate-Monitor-Wrist-Band-Arm-Belt-Bluetooth-4-0-ANT-Cycling-Accessories-Cadence-Sensor-for.jpg)
Heart Rate Monitor Wrist Band Arm Belt Bluetooth 4.0 ANT Cycling Accessories Cadence Sensor for Wahoo Zwift GPS Bike Computer
![Polar H7 Bluetooth 4.0 Heart Rate Sensor Set for iPhone 4S/5 - Size - S, Black : Amazon.co.uk: Sports & Outdoors Polar H7 Bluetooth 4.0 Heart Rate Sensor Set for iPhone 4S/5 - Size - S, Black : Amazon.co.uk: Sports & Outdoors](https://images-eu.ssl-images-amazon.com/images/I/61R31BlKiSL._AC_UL900_SR615,900_.jpg)