It doesn't call home with each data point; that would mean that radio is never standby and the user would notice that his battery is quickly dead. No, location

It doesn't call home with each data point; that would mean that radio is never standby and the user would notice that his battery is quickly dead. No, location history is a _feature_, where saved datapoint set is submitted in batches, when the radio is active. And of course, you can turn it off (I did).