I have a Fitbit Charge 4. I pair it with an Android - Samsung Galaxy S9+ SM-G965F. I want to have the distance unit in miles. Over the last couple of days I have tried to change the unit in the Fitbit app on the phone. The Charge 4 remained in km. The I re-checked the app. That had reverted to km as well. I have re-started the phone. I have re-paired the phone with the Charge 4. I have altered the clock from 24hr to 12hr to check. That facility has changed on the Charge 4. And changing it back to 24 hrs. have synced and re-synced several times. I change the unit to miles, come out of the app. Charge 4 showing km. Go back into the app on the phone and it has re-set to km. Every other facility seems to be syncing perfectly ie. steps taken, heartbeat, flights of stairs, etc. Anyone suggest anything?
