Google Maps timelineYour timeline in Google Maps helps you find the places you've been and the routes you've traveled. It is only accessible if you log in with your Google account.
Seems to be automatic for Android devices (version 9.12 and up) and needs to be turned on for iDevices (Location services). Can be viewed on an Android but not currently on iPhone/iPad.
Distinguishes between vehicles, biking and walking.
The map below shows one day walking and travelling by car (use the day drop box to get the calendar)
What are the privacy implications?