https://help.fitbit.com/articles/en_US/Help_article/1186
Eric
--- Two wrongs don't make a right, but three lefts do.
Flex (Christmas 2014), ChargeHR (Christmas 2015). Wife is using the Flex now! Nope, that Flex has died. Alta ordered 12/15/16 as Flex replacement. So far, she likes it. Nope, alta battery only lasts 2 days, started at 7. Support contacted 12/7/17. Hope warranty covers it.