It seems there is inconsistency in Vigorous Activity in FITNESS AGE between Garmin Connect Mobile and Garmin Connect Web. While Garmin Connect Web states: “Aim for at least 15 vigorous intensity minutes in a 30-minute time period to achieve your vigorous intensity objective for that day.” The Garmin Connect Mobile states: “Getting 30 minutes of vigorous activity…”
I have noticed that the app only accounts for more than 30 minutes of vigorous activity (Which is 60 Total) and if it is, let’s say 20 minutes (40 Total) it will not count it towards the goal.