How to count calories with your smartwatch or fitness tracker

How to count calories with your smartwatch or fitness tracker

Apart from the 10,000 steps challenge that many of us try to achieve on a daily basis, keeping track of the number of calories burned each day happens to be THE measure that fitness trackers and smartwatches rely on. While having data at your fingertips is great, the more pressing question would be: what do I actually do with it?