Fitbit (and likely compatible devices) and strava (the app) which is the fitness-workout route type tracker. I have friends who are mad keen cyclists and who swear by it since they can all complete with each other in terms of distances and times. But its not so great when it exposes people being in locations that perhaps are not entirely disclosed as being points of military interest and construction.
Don't all those fitbit type watches give an awful lot of info too? It was a few years ago now but I remember there being cheap knockoffs for like $20.
Fitbit (and likely compatible devices) and strava (the app) which is the fitness-workout route type tracker. I have friends who are mad keen cyclists and who swear by it since they can all complete with each other in terms of distances and times. But its not so great when it exposes people being in locations that perhaps are not entirely disclosed as being points of military interest and construction.
https://www.thevoid.uk/void-post/fitbit-exposes-secret-bases-in-antarctica/