View Phone battery from Apple watch
How can I see my iPhone’s battery life from my Apple watch?
iPhone 11, iOS 17
How can I see my iPhone’s battery life from my Apple watch?
iPhone 11, iOS 17
If you open the "Find Devices" app on your watch, you can see the battery life of your registered devices.
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copied from: Find misplaced devices with Apple Watch - Apple Support
View Phone battery from Apple watch