03-12-2016 04:40
03-12-2016 04:40
03-12-2016 07:45
03-12-2016 07:45
Welcome to Fitbit!
Two possible explanations
1) If the Fitbit was turned on in the package, it would track the Basal Metabolic Rate of the default person plus any shakes/moves of the box.
2) If you set up an account in July, that might be your BMR calories.
I am not aware that Fitbit re-packages (in fact, based on what I have seen, I can say with 99% confidence they do not), but it is possible the the seller did - unless you bought directly from Fitbit.
Scott | Aviano Italy
Force, One, Charge, Charge HR, Surge - iOS
Take a look at the Fitbit help site for further assistance and information.