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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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What does this mean under alarms? This pic was taken at 9:20 am and my alarm is set for 7:30 am with smart wake on. The number of minutes doesn't match to
Fitbit Charge 4 Gets Smart Wake, Dynamic GPS, and an Adjustable Display Timeout – Review Geek
Amazon.com: Fitbit Charge 4 Special Edition Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Granite Reflective, One Size (S &L Bands Included) : Sports & Outdoors
Fitbit Charge 4 update brings Dynamic GPS and Smart Wake Alarms
Fitbit Charge 4 major update adds Dynamic GPS, Smart Wake alarms - PhoneArena