Amazon.com: Garmin HRM-Pro, Premium Heart Rate Monitor Chest Strap, Real-Time Heart Rate Data and Running Dynamics, Black : Sports & Outdoors
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Amazon.com: Garmin HRM-Pro Plus, Premium Chest Strap Heart Rate Monitor, Captures Running Dynamics, Transmits via ANT+ and BLE : Everything Else
Garmin HRM-Pro Plus review: One very handy design update, same price | ZDNET