Restored Apple Watch Series 10 (GPS + Cellular) Smartwatch Aluminum Case With Black Sport Band Open Box

The Sleep app not only tracks your sleep, it helps you create a bedtime routine and schedule. See the time you spent in REM, Core and Deep Sleep, as well as when you might have woken up. With The Vitals app, you can quickly see your key overnight health metrics right on your watch — including heart rate, respiratory rate, wrist temperature, blood oxygen and sleep duration. For a more holistic understanding of your daily health status. Unusually high or low heart rates and irregular heart rhythms (known as arrhythmias) could be signs of a serious condition. But many people don’t recognize the symptoms, so the underlying causes often go undiagnosed. Notifications in the heart rate app will alert you to these irregularities so you can take action and consult your docto.