When you set up an Apple Watch, you'll need to pair it with an iPhone and make sure that you have a stable internet ...

And, voilà — sleep apnea detection is now set up on your Apple Watch. To learn even more about the condition, head back to the Browse tab in your iPhone's Health app and select Respiratory health.

How to unlock your Apple Watch’s sleep score. Install iOS 26 on your iPhone and watchOS 26 on your Apple Watch. Open the ...

You can unlock your iPhone with an Apple Watch, which is useful if you're wearing a mask or Face ID can't identify you.

I recommend these features and settings to everyone who's just set up a new Apple Watch or wants to get more out of the one already on their wrist.