Charge 2 is new and already says that I burned 800 calories?

[Rosiecoates]

I just got my fitbit charge 2 yesterday and just put it on today and its already saying ive burnt 800 calories but i cant of cause ive only just put it on my wrist? Also its got a list of calories ive burnt this past week but i only got it in the post yesterday, very confused 

Moderator edit: Subject for clarity 

[LZeeW]

@Rosiecoates  Hello, and welcome to the forums.

Those calories are your BMR (Basal Metabolic Rate) calories.  They are the calories you burn just being alive and at rest.  Throughout the day, your calories burned will represent your total calories -- BMR calories plus your activity calories.

And, yes, you can go back in time and see calories burned from before you owned your Fitbit.  I don't have a good explanation, but I can tell you that it has been like this since I got my first Fitbit.

[HeydyF]

Hey @Rosiecoates, let me give you a warm welcome to the Community! As @LZeeW explained, the data you're seeing is an estimate of your historical caloric burn. Although Fitbit doesn't have activity recorded prior the set up of your tracker, we can base your caloric burn activity (before you've had a tracker) via your BMR.

Your Fitbit will reset at midnight every night, clearing your data for the day; however you still burn calories while you sleep or rest, so the data you see is your estimated calorie burn for the day or BMR, it is estimated using your age, gender, height and weight.

Hope this helps!