You don’t get it. It doesn’t do a good job, you could hardly tell if it does any job at all. It’s obvious you haven’t use any product other than the Apple Watch. This thing doesn’t have basic functionality from 3 to 5 years ago, what part don’t you get that doesn’t even track your sleep without you setting it up manually? It’s a joke of a product, seriously. I’m back to using my Fitbit that lasts I don’t know how many days with a charge, can monitor heart rate, can detect when I’m going to sleep and has text notifications.