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Amazon.com : POLAR H7 Bluetooth Heart Rate Sensor & Fitness Tracker (Black, Medium/XX-Large) : Heart Rate Monitors : Sports & Outdoors
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Amazon.com: Heart Rate Monitor USA Replacement Soft Strap (Works with Polar H7 H9 H10 & More / Works with Garmin Dual) Med/XXL : Everything Else
![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/81LIaAkyO1L._AC_UF1000,1000_QL80_.jpg)