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A brief look at the Nike+ Sportwatch GPS | DC Rainmaker
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Nike's Fuelband is a fitness monitor that uses a new type of calorie counter, but who'll buy it? | Daily Mail Online
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Apple Watch 5 + Nike Run Club doesn't track calories : r/AppleWatch
Nike Fuelband SE Review | Trusted Reviews
Apple Watch Series 2 and Nike+ Edition: Sport & Fitness In-Depth Review | DC Rainmaker
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Nike Plus Apple Watch Review
Why Fitness Tracker Calorie Counts Are All Over the Map | WIRED