Apple Watch owners are very well acquainted with the three colored activity rings — move (red), exercise (green) and stand (blue) — and the sense of pride you feel when you reach all of your goals and ...

While most workout gadgets estimate all the calories you burn during the day, Apple Watch does something different. It uses a metric called Active Calories, which is always lower than Total Calories.

If you have used your Apple Watch for training, or any other fitness tracking watch, then you may have wondered what active calories vs total calories is. This can be seen on the display on your Apple ...