Compatible heart rate sensors All Polar heart rate sensors can be worn in water. Only sensors with GymLink transmission detect h
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New Polar Heart Rate Monitor H1 Transmitter With Soft Strap Ranked Most Comfortable By Heart Rate Watch Company
![Amazon.com : POLAR H7 Bluetooth Heart Rate Sensor & Fitness Tracker (Black, Medium/XX-Large) : Heart Rate Monitors : Sports & Outdoors Amazon.com : POLAR H7 Bluetooth Heart Rate Sensor & Fitness Tracker (Black, Medium/XX-Large) : Heart Rate Monitors : Sports & Outdoors](https://m.media-amazon.com/images/I/41eUxIiVtbL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : POLAR H7 Bluetooth Heart Rate Sensor & Fitness Tracker (Black, Medium/XX-Large) : Heart Rate Monitors : Sports & Outdoors
![New Polar Heart Rate Monitor H1 Transmitter With Soft Strap Ranked Most Comfortable By Heart Rate Watch Company New Polar Heart Rate Monitor H1 Transmitter With Soft Strap Ranked Most Comfortable By Heart Rate Watch Company](https://ww1.prweb.com/prfiles/2013/02/13/10428283/apple-iphone-4-gsm-cdma.jpg)