The app includes instructions on how to reset an Apple Watch 6 and much more, including how to update the device's running system.

A brief explanation of the Apple Watch is as follows: With a breakthrough new sensor and software, the Apple Watch Series 6 allows you to measure your blood oxygen level.
• Measure your blood oxygen with an all-new sensor and app with a GPS model that lets you answer calls and respond to SMS from your wrist
• The Always-On Retina display is 2.5x brighter outside while your wrist is down than the Series 5 • S6 SiP is up to 20% faster than the Series 5 • 5GHz Wi-Fi and U1 Ultra Wideband chip
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On Apple Watch, track your daily activities and view your trends in the Fitness app on iPhone.

Take an electrocardiogram (ECG) from your wrist. When your wrist is down, see your fitness data on the upgraded Always-On Retina display, which is now 2.5x brighter outdoors.
Make a nighttime regimen and keep track of how much sleep you get. And you can answer and respond to calls and messages right from your wrist. It's the ideal tool for living a better, more active, and more connected life.