My Blaze battery doesn't stay cahrges longer then 2-days and that is without using anything but normal watch activities. I'm using a Galaxy S8 that FITBIT is still working on an updated to fix a known issue with the S8. Their recommendation is to sync to a computer or an I-phone instead! I would recommend buying another brand of watch that doesn't have this issue or the company has a better program for fixing their watches.
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