 And this is looking at your sleep, your activity, your sleeping heart rate, and your sleeping heart rate variability to let you know how prepped you are for your day. So if your score is a little low, it's going to say, you know what, maybe today is not the best day to work out. Maybe take it as a recovery day. It also has automatic walking and running tracking. It's got heart rate alerts, so it will give you a real-time notification if you have an unusual heart rate issue happening.