Manage Background App Refresh
With Background App Refresh on, apps can keep working on the background so they can provide the most up-to-date information to you as soon as you need it.
While this sounds great, it can also consume a lot of power, shortening the battery life of your Apple Watch. How much impact this has depends on which apps are running in the background, but you can disable Background App Refresh entirely or just disable it for the apps you know you don’t really need.
- Open the Watch app on your iPhone.
- Go to General.
- Tap on Background App Refresh.
- Disable Background App Refresh or disable the apps that are using it.
If you want to do this on your Apple Watch, go to Settings > General > Background App Refresh.