Fitbit - Smart Wake activates a gentle buzz on your wrist during your lightest sleep stage so you can really take flight when it's time to rise. Goodbye, groggy. Hello, energy. | Facebook
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Sarah von on Twitter: "Really hard to snap a pic of Fitbit flight game #fitbitflight #fitbitgame #fitbit #chargeHR2 https://t.co/OPbfQftMax" / Twitter
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