Travelling in Europe

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Originally Posted by adam917

I'm curious - about how little bandwidth are those 'trackers' using? I know when I try to get directions with Google Maps, a lot of data is used due to new map tiles loading up on every action.

no, these trackers _send_ the GPS positions to a internet server which processes and displays the data. E.g. for delivery trucks or other logistics services as well as for security reasons. One position update to the internet only takes a few bytes.