$44.99 difference between fitbit charge 
FITBIT CHARGE 4 VS 3 // WHATS NEW 
difference between fitbit charge 3 and 
difference between fitbit charge 3 and charge 4
difference between fitbit charge 3 and charge 4
difference between fitbit charge 3 and charge 4
difference between fitbit charge 3 and charge 4
difference between fitbit charge 3 and charge 4
difference between fitbit charge 3 and charge 4
difference between fitbit charge 3 and charge 4