Whether you’re using the Vantage V, its smaller sibling the Vantage M or something more meaty like the Grit X, Polar’s current crop of GPS sport watches and fitness trackers are smarter than ever – ...

A popular fitness app provided a convenient map for anyone interested in shadowing government personnel who exercised in secret locations, including intelligence agencies, military bases and airfields ...

Fitness tracking app Polar Flow allowed anyone with relatively little effort to work out the names, home addresses and daily movement routes of thousands of military and intelligence officials who ...