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Amazon.com : Pyle Smart Fitness Heart Rate Monitor - Digital Sports Wrist Watch Activity HR Tracker w/ Chest Strap, 3D Sensor, EL Backlight, Alarm, Used in Exercise or Running, For Men and
Amazon.com: Smart Watch for Men Women - Oximeter (SpO2) Calorie Pedometer, Sleep and Heart Rate Monitor, 24 Sports Modes 1.47 Inch HD Screen, iP68 Waterproof, Compatible with Android and iOS Phones (2
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