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Jawbone Up2

Published:Caption:Photo:Sarah Tew
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Jawbone Up app

Published:Caption:Photo:Sarah Tew
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Microsoft Band 2

Published:Caption:Photo:Sarah Tew/CNET
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Fitbit Charge HR

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Fitbit app data

Published:Caption:Photo:Sarah Tew
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Beddit Sleep Monitor Classic

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Beddit app data

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SleepBot app

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