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Amazon.com : Heart Rate Monitor, Calorie Counter, Fitness Activity Tracker & Sport Watch with Exercise Timers, Alarm, EL Backlight, Chronograph and Stopwatch - Chest Belt with Elastic Band & Polyurethane Fabric Strap -
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Carevas Wireless Sports Heart Rate Monitor Chest Strap Sensitive Heart Rate Sensor Lightweight Heart Rate Monitor Running Cycling Sports Fitness Heart Rate Band - Walmart.com
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