I am from Canada but spend my winters in the US, I have a data roaming package. I purchased my vivosmart hr last fall after coming to the US. I have wifi in my house, wifi assist is turned off on my iPhone and phone is charged at night. I see data usage all night. .01 mb or .02 mb every hour all night . Is this from my garmin? All my apps on the phone have cellular turned off,
Your Garmin wearable device cannot somehow generate packet data traffic over the cellular mobile network via a connected mobile handset, if the operating system settings on the latter prevent installed apps from using cellular mobile data.
The broader question of what then is generating the data traffic and incurring data charges in the circumstances is therefore not a concern related to your use of Garmin devices and/or Garmin software.
