> A good device just had an option "sync usage data to Amazon account" The Kindle has an option to "sync last page", which you can turn off -- that sounds like

> A good device just had an option "sync usage data to Amazon account" The Kindle has an option to "sync last page", which you can turn off -- that sounds like it could be exactly what you're asking for, but more experimentation would be needed to know for sure. I didn't see any mention of this config in the OP, aside from mentioning that the feature exists, so it's unclear whether the data being sent is used just for that feature, or whether less data is sent if the sync feature is turned off.