How to Factory Reset Your Samsung Galaxy Watch.Resetting your Samsung Galaxy Watch to factory settings is a great way to fix recurring performance issues or crashes. Samsung also recommends that you reset your Galaxy Watch before selling or giving it away.Resetting your Samsung Galaxy Watch to factory default is very easy, but the steps may vary depending on your watch model and software version. This guide covers various ways to restore factory settings for all Samsung Galaxy Watch models.
Resetting your Galaxy Watch to factory defaults deletes all data on your watch – apps, personal information, health data, etc. If you perform a factory reset on your Galaxy Watch to fix the problem, we recommend that you back up your data first .We also recommend that you charge your Samsung Galaxy Watch to at least 50% battery before resetting it to factory settings.
Back Up Your Samsung Galaxy Watch
Connect your Galaxy Watch to your Android device and follow the steps below to back up your watch data.
- Tap the settings icon on the watch home screen or quick settings panel.
- Then go to General > Reset and click Data Backup.
Alternatively, open the Galaxy Wearable app, go to Watch Settings > Accounts and Backup and click Back Up Data. 
- Select the data to back up, or click Select All to back up everything on your Galaxy Watch. Click Backup at the bottom of the page to continue.
- Wait while the app backs up your watch data to your Samsung account and click Done when done.
Factory Reset Your Galaxy Watch from the Settings App
Open the Settings app on your Galaxy Watch, tap General and select Reset at the bottom of the page. Your Galaxy Watch will turn off and restart after the factory reset. 
Factory Reset Your Galaxy Watch Using Recovery/Reboot Mode
If your Galaxy Watch freezes, doesn’t respond, or won’t turn on, you can restore it to factory settings by booting into recovery or reboot mode.
- Press and hold the Food button (or Home) and Back for 10-15 seconds.
- Press the Home key several times/Food until the message “Rebooting…” appears on the screen. The Reboot Mode screen of your Galaxy Watch will open.
- Press the home key to navigate to Restore span>. After that, hold the Home key to boot into recovery mode.
If you have a Galaxy Watch3 or earlier, selecting “Restore” (in step 3) will start the factory reset process. Skip to step #4 if you have a Galaxy Watch4 or newer models.
- Use Back Button to navigate to Delete Data /factory reset and press the home key to select an option.
- On the confirmation screen, press the Back key to select Factory reset and press the home button to start the reset.
Factory Reset Your Galaxy Using the Galaxy Wearable App
Open the Galaxy Wearable app on your Android phone and follow the steps below.
- Click View Settings, select General, and click Reset.
- Click the Reset button to start the reset operation.
Factory Reset Samsung Galaxy Watch on an iPhone
You can also factory reset your Galaxy Watch remotely using the Galaxy Watch iOS app. Open Galaxy Watch on iPhone, navigate to Basic > Reset and press Reset on the confirmation screen.
What to Do After Resetting Your Galaxy Watch
If you’re selling or giving away your Galaxy Watch, Samsung recommends disconnecting it from your phone after a factory reset. If you performed a factory reset to fix the problem, restore your backup data when you set your watch.
Restore your data
Your Galaxy Watch should restart after the factory reset. Bring your watch to your phone, turn on Bluetooth, and follow the instructions to restore your watch data.
- Open the Galaxy Wearable app and press Start on the welcome screen. Wait for the app to detect your watch and select it from the list of devices.
- Then press Verify if the verification code in the app matches the one displayed on the watch screen.
- Sign in with your Google account and select the backup you want to restore.
- Select the parts of the backup data you want to restore and click the Restore button to continue.
- Press Next to continue setting up your watch when the Galaxy Wearable app restores your data.
How to unpair a Samsung Galaxy Watch
Open the Bluetooth settings menu on your phone, select Galaxy Watch, press Disable and select Break Pair in the popup. 
A Fresh Start
These are the reset methods for Samsung Galaxy Watches. Please note that the steps may differ depending on your watch model and operating system. Contact Samsung Support if you’re having trouble resetting your Galaxy Watch to factory defaults.
How to Factory Reset Your Samsung Galaxy Watch
How to Factory Reset Your Samsung Galaxy Watch