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@LLStahls You must be over 13 years of age to set up a Fitbit account. (Legal info HERE ). Also, you can have multiple trackers on one account, but they have to be different types - hence why it thinks you are trying to replace yours when you try to add. (You could add any other type BUT a Charge 2)
Hope this helps~
Kelly | Oklahoma
Alta HR, Blaze, Flex 2, Charge 2, Charge, and Aria * IPhone 7+
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