I find that for me, at least, walking, say, 20 minutes can range from one minute of exercise to seven. How exactly does the watch calculate this? Am I not wearing the watch correctly? I have a 38 mm with a leather band. My wrists are very, very tiny and am wearing it either in the smallest or second smallest hole.
Watch site. Most sedentary people don't understand that 'brisk pace' is synonymous with walking VERY fast.