Fitbit Zip and Fitbit Charge 2

[karenew11]

At times I have to wear a brace on my hands. When I do this I like to have the Fitbit Zip in my pocket. If I use both, will the steps add together or will they sync to be the same?

[SteveH]

They won't be added together - fitbit tries to work out the right numbers but you can get strange results. Fitbit say:

"If you have more than one device paired to the same account and you forget to take one off before putting on another, we’ll reconcile the overlapping data to present the most accurate information possible on your dashboard. For example, if one of your trackers is using GPS and another is not, your dashboard chooses the GPS data when calculating total distance since GPS provides a more accurate distance measurement than step counting alone. However, the more overlapping data that exists on your account, the more likely it is that your dashboard's accuracy will suffer. For best results, don't wear more than one device at a time and sync each device before taking it off and putting on another."

from: https://help.fitbit.com/articles/en_US/Help_article/1715/