Charge 6 is overcounting steps

[SicilianDesert]

This morning the step count on my Charge 6 started calculating my steps and within 3 hours of me waking up, reached 40 million steps. Within 8 hours I was up to 136 million steps. The step widget on my Fitbit app display on my iPhone looked like a penny slot machine paying out. The number just kept going up and up. The only way I could stop it was to disconnect the app from my iPhone.  I deleted the data from my Fitbit app which brought the step count down to a realistic number.  When I connected my phone again, it started adding thousands of steps. My iPhone had been synced before today so unsure what triggered this or how to resolve. I suspect the sync was pulling in years of steps that were being tracked on my iPhone and merging them with my Fitbit data.  Anyone else experience this?

Moderator Edit: Clarified subject

[JohnnyRow · Accepted solution]

Check if you have you phone connected as a Fitbit device.  Fitbit says that's a great way to get steps counted by phone when not wearing your Fitbit, but to me it seems whenever I read of someone getting humungous quantities of steps added all at once for no reason, it turns out they have phone connected as a fitbit device, often without even realizing it.

[SicilianDesert]

Problem solved.  Thanks!