How To Reset Sync Data On Apple Watch. Once you have erased all the data pair the smartwatch with your iPhone. The following screenshots were taken in iOS 10.

To turn off a data source so that it doesnt contribute any more data for that category tap the checkmark next to the source. A popup will appear asking if youre sure that you want to remove the service. Start by going to iPhone Apple Watch General Reset Reset Sync Settings.
To turn off a data source so that it doesnt contribute any more data for that category tap the checkmark next to the source.
For GPS Cellular models choose to keep or remove your cellular plan. Press and hold down the side button until you see three horizontal sliders. With the Apple Watch Series 7 Apple has eliminated the Diagnostic port. Use Apples built-in Spotlight Search if you cant find the app on your smartphone.

