Apple Watch exercise calculation

apple-watch

I just walked on my treadmill for 20 minutes. I don't see anything in the exercise ring. How is the exercise time counted?

Best Answer

If you hold onto the handle bars, your WATCH has no way to tell that you’re exercising. Your arms need to be swinging during Walking activities for WATCH to credit you exercise minutes.

As @RedEagle2000 mentioned, your activity also needs to cross a certain intensity threshold. That intensity is specific to each individual, with WATCH learning your exercise capacity through your measured heart rate throughout the day, your other activities, etc. Calibrating your WATCH as per Apple’s instructions can help in that department.