Samsung Galaxy Watch
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Restoring factory default settings
If your smartwatch gets slow or doesn't work as it usually does, it may help to restore the factory default settings. All settings and configurations you've made on your smartwatch are deleted.
Press the Home key.
Press the settings icon.
Press General.
Press Reset.
Press the confirm icon. Wait a moment while the factory default settings are restored. Follow the instructions on the screen to set up your smartwatch and prepare it for use.