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Amazon.com: Fitbit Charge 2 Superwatch Wireless Smart Activity and Fitness Tracker + Heart Rate and Sleep Monitor Smart Wristband, Black, Small (5.5-6.7 in) (Renewed) : Sports & Outdoors
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Hands-on: Fitbit's new Flex 2 and Charge 2 Activity Trackers, plus Blaze & Alta updates | DC Rainmaker
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