So it's not gon na accidentally go through cycling every one of the features, but when you have it turned on you notice, you got your watch face with heart rate and distance traveled and you can of course see separate screens on all of those, including calories burned. You have a heart rate section as usual and it can monitor blood pressure as well. You have last night's sleep time on here and where it gets interesting is in the Associated app. Because not only do you see these numbers, including blood oxygen, but you also can go in and get an EKG chart in the blood oxygen. You can see sleep apnea and hypoxia and all kinds of things you can install separately from the app a countdown timer or a stopwatch, and this is unique. This allows you to turn this device into a chest, strap and get a live, continuous, ECG.