Charge 6 active zone minutes go crazy

[henk10]

I just replaced my Charge 4 with the Charge 6 after its screen went black. Most things work as expected, except for the heart rate zones and the crazy amount of active zone minutes that are produced.

It lists all my heart rate zones just above the resting rate, which means I get hundereds of active zones minutes per day, while the WHO goal is 22 min/day.

Something is seriously wrong with the software. I was expecting that my previous data would be inherited. Anyone have similar issues? If nothing can be done I need to return it.

[JohnnyRow · Accepted solution]

Check if your birth date in Google account is 1900.

[henk10]

It seems like it was resolved by inputing the max pulse manually rather than letting Fitbit calculate it automatically. It seems that capability was lost in the Charge 6?

[Triletics]

@henk10 it wasn't. You migrated to your Google account when setup Charge 6 and it uses year of birth from that account whatever you set and max HR on Fitbit is set as 220-age.

[henk10]

Now I also found the age setting, turns out Johnny and you were right about it being close to 1900. Thank you!