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To restart a responsive Samsung Galaxy Watch, open its power menu and choose Restart if that option is available. If it is frozen, press and hold the Home/Power key and Back key together until “Rebooting…” appears or the Samsung logo shows. A restart does not erase your data; a factory reset does.
Restart, force restart or factory reset?
These actions are not interchangeable. Start with the least disruptive option that fits the problem.
| Action | What it does | Erases data? | Use it when |
|---|---|---|---|
| Normal restart | Turns the watch off and starts it again | No | The watch responds but is slow, glitchy or briefly disconnected |
| Force restart | Reboots the system using the physical buttons | No | The screen, controls or an app are frozen |
| Factory reset | Returns the watch to its default setup | Yes | Persistent problems remain, or you are moving the watch to a new phone or owner |
Samsung distinguishes restarting for minor issues, force restarting a completely frozen watch, and resetting for persistent problems or a new-phone setup. See Samsung’s restart and reset guidance.
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- Wake the watch.
- Open the power menu. Depending on the model and software, press and hold the Home/Power key or open Quick settings and tap the power icon.
- Tap Restart, if shown. If the menu offers only Power off, select it, then press and hold Home/Power to turn the watch back on.
- Wait for the Samsung logo and watch face to appear.
Menu labels and routes vary by model and software version. If the watch is frozen, do not rely on an on-screen Restart or Power off command: use the physical-button force restart below. Samsung’s restart troubleshooting instructions direct users to force reboot an unresponsive watch.
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How to force-restart a frozen Galaxy Watch
- Press and hold the Home/Power key and the Back key at the same time.
- Keep holding until “Rebooting…” appears, or the display goes black and the Samsung logo appears.
- Release the buttons and wait for the watch to finish starting up.
The Home/Power key is usually one of the two physical side buttons; the Back key is the other. The Home key may be called the Power key in Samsung instructions. Use the buttons themselves—not the touchscreen or rotating bezel—for this forced reboot.
Samsung’s regional instructions describe holding both buttons for at least seven seconds, while its U.S. troubleshooting page says some models can take up to 30 seconds. Timing varies, so use the reboot message or logo as the signal to release rather than stopping at a fixed count. A blank screen for a short time is normal. The watch may temporarily disconnect from your phone, and tracking or notifications can pause during the reboot. It should return to the watch face without asking you to set it up again. Sources: Samsung U.S. and Samsung Canada.
After the watch restarts
- Wait for startup to finish, then check whether the watch reconnects to your phone.
- Open Galaxy Wearable and keep the phone nearby while the Bluetooth connection returns.
- Check for updates to the watch software, Galaxy Wearable app and watch plugin.
- Try the feature or app that was causing the problem. If just one app still fails, close or force-stop that app, update it or remove it rather than repeatedly rebooting the whole watch.
A restart can clear a temporary connection or software fault, but it cannot guarantee a Bluetooth or LTE fix, and it is not a guaranteed cure for ongoing battery drain. Persistent drain may require checking apps, updates, connectivity and watch-face behavior; battery age or hardware may also be a factor. Samsung recommends checking watch and Galaxy Wearable updates after restarting to troubleshoot a problem (Samsung support).
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If your Samsung Watch will not turn on
A depleted battery or charging fault can look like a frozen watch. Try this before treating it as a software problem:
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- Use the charging dock designed for your exact watch model and connect it to an appropriate adapter. Do not assume docks are interchangeable across Galaxy Watch generations.
- Center the watch on the dock. Check the watch back, dock and cable for visible debris or damage; remove a metal band if it interferes with charging or causes excess heat.
- Leave the watch charging for at least one hour.
- If no charging indicator appears, press Home/Power once. After charging, take the watch off the dock and press and hold Home/Power to turn it on.
- If it still will not start, try the two-button force restart while it has charge.
Samsung recommends the charger designed for the particular model and warns that an incorrect or unapproved charger may fail to charge the watch or cause damage. If charging and a force restart both fail, or you see physical damage, contact Samsung service rather than continuing to press a damaged or stuck button. See Samsung’s charging and power troubleshooting steps.
If the watch is stuck on the Samsung logo or keeps rebooting
One slow startup is different from a boot loop. If the watch shows the logo once, give it time to finish booting and make sure the battery is charged. If it repeatedly returns to the logo:
- Try one force restart using Home/Power and Back.
- If the battery may be low, leave the watch on its correct charger while you troubleshoot.
- If it starts successfully, install available software updates and address any recently installed or malfunctioning apps.
- If the loop continues, back up what you can and consider a factory reset only as a last resort. It erases the watch.
If a boot loop remains after a reset, or the watch has water or impact damage or a stuck button, contact Samsung service.
Last resort: factory reset from recovery
This is not a restart. A recovery reset deletes the watch’s configuration and locally stored data. Samsung’s recovery instructions vary by model; the following sequence applies to supported Galaxy Watch models:
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- Start the reboot sequence by holding Home/Power + Back until “Rebooting” appears.
- Quickly press Home/Power repeatedly until the Reboot mode menu appears.
- Press Home/Power until Recovery is highlighted, then press and hold Home/Power to select it.
- On Wear OS watches, swipe down to Wipe data/factory reset, swipe right, choose Factory data reset, then swipe right to confirm.
- When the reset completes, swipe right to reboot.
Galaxy Watch4, Watch5 and Watch6 models show an additional Wear OS recovery menu; other models may proceed directly after Recovery is selected. After recovery, the watch may require sign-in to the same Samsung account. Follow Samsung’s recovery reset instructions for your model before proceeding.
Factory-resetting a watch that still works
If the watch connects to your phone, Samsung’s Galaxy Wearable route is usually the easier option. Back up first, then:
- Open Galaxy Wearable.
- Tap Watch settings, if shown.
- Tap General > Reset.
- Review the warning and confirm Reset.
You can also reset directly on many watches: open Settings > General > Reset, review the warning and confirm. Some models or connection states may instead offer General > Connect to new phone. Labels and availability vary. After resetting, set up and pair the watch again. Samsung’s U.S. steps are at its Galaxy Watch reset support page.
Back up first and plan for setup again
A factory reset removes the current configuration, including apps, settings and watch faces, as well as data stored only on the watch. Back up through Galaxy Wearable where possible. Data that synchronized before the reset may remain available through the relevant Samsung account or health service, but unsynchronized data cannot be assumed recoverable.
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If you use an LTE watch activated with a QR code, Samsung says you will need a new QR code from your carrier to reactivate service after a reset. A reset is also different from simply unpairing Bluetooth. See Samsung’s reset and backup guidance.
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The two-button force-restart guidance applies broadly to Galaxy Watch models, including recent Galaxy Watch4 through Watch8 generations, Watch8 Classic, Watch Ultra and Watch FE, but menu names and recovery screens can differ. Older Galaxy Watch, Watch Active, Active2, Watch3 and Gear models may show different labels or options. Galaxy Fit and Gear Fit devices have separate reset instructions. Samsung notes that features and settings vary by watch and software version, so follow the on-screen options for your model rather than assuming every menu is identical.
Galaxy Watch4 and Watch4 Classic are not compatible with iOS; phone setup and reset guidance should not be read as a universal iPhone route. Samsung documents this compatibility limitation on its Galaxy Watch support page.
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Frequently Asked Questions
Does restarting a Samsung Galaxy Watch erase data?
No. A normal restart or force restart should not erase the watch. A factory reset does erase its configuration and locally stored data.
How long should I hold the two buttons?
Hold Home/Power and Back together until “Rebooting…” or the Samsung logo appears. Samsung says some models may take up to 30 seconds; the exact timing varies.
Can I restart my Galaxy Watch from my phone?
Samsung’s primary force-restart method uses the watch’s physical Home/Power and Back keys. Do not assume Galaxy Wearable can remotely restart every model.
Will resetting an LTE watch cancel my cellular service?
For LTE watches activated with a QR code, Samsung says a new QR code from the carrier is required to reactivate service after a reset. Check with your carrier about your plan and setup.
What if the watch is still stuck after a factory reset?
If it continues to boot-loop, will not charge, or has physical damage or a stuck button, contact Samsung service. Repeating resets is unlikely to resolve a hardware fault.
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