Could you advise what sort of data might be leaked? I'm curious, just not sure how to ask without it sounding antagonistic. I use contacts, phone, SMS, and the

Could you advise what sort of data might be leaked? I'm curious, just not sure how to ask without it sounding antagonistic. I use contacts, phone, SMS, and the odd search on Google Maps and Chrome (once a week or so). All I can imagine they're able to track is the time, date and recipient of calls, plus the message for SMS and search history. Is there something I don't know about that Android records on top of that?