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Polar Announces A300 Activity Tracker Watch, also MyFitnessPal automatic sync support | DC Rainmaker
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Polar A300 Fitness Activity Tracker With Heart Rate Sensor! | Gadget Explained Reviews Gadgets | Electronics | Tech
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Polar H10 Size XS-S - Heart rate sensor for cellular phone, GPS watch, activity tracker - black - for Polar A300, A360, Loop, Loop 2, Loop Crystal, M200, M400, M600, V800 - Walmart.com
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