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Amazon.com : Polar Verity Sense - Optical Heart Rate Monitor Armband for Any Sport and Exercise - ANT+, Dual Bluetooth - Swimming Mode - Compatible with Peloton, Zwift, and Gym Equipment, Black,
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Amazon.com : MOOFIT Heart Rate Monitor Armband, Bluetooth & ANT+ Heart Rate Monitor, IP67 Waterproof, Optical Heart Rate Sensor, Rechargeable Armband Heart Rate Monitor Works with Zwift, Wahoo, Endomondo, Peloton : Sports
Polar - Introducing Polar OH1 optical heart rate sensor. Optimized for use on the lower or upper arm, Polar OH1 provides an alternative method for measuring your heart rate during training. In
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