How to Factory Reset Apple Watch Ultra

You’ve decided to sell your Apple Watch Ultra, troubleshoot a stubborn software glitch, or set up a secondhand model—either way, you need to wipe it clean. Performing a factory reset on an Apple Watch Ultra removes all personal data, apps, settings, and media, returning the device to its original state. But there’s a catch: even after a successful reset, your Apple Watch may remain locked to the previous owner’s Apple ID due to Activation Lock.

This guide walks you through both reset methods—directly on the watch and via a paired iPhone—and explains how to avoid getting stuck with a locked device. Whether you’re preparing your Ultra for resale or trying to use one you bought used, you’ll learn exactly what works, what doesn’t, and how to protect yourself.

Reset Using the Apple Watch Itself

Use this method when the Apple Watch Ultra is unpaired, secondhand, or no longer connected to an iPhone.

Connect to Power First

Always plug your Apple Watch Ultra into a charger before starting. A full reset requires sustained power, and low battery can interrupt or block the process entirely. If the battery dies mid-reset, the device may become unresponsive or fail to erase completely. Use the original Apple magnetic charger for reliable performance.

Press Side Button, Then Hold Digital Crown

1. Press and hold the side button (located below the Digital Crown) until the Power Off slider appears.
2. Release the side button.
3. Immediately press and hold the Digital Crown.
4. Keep holding it until a prompt appears asking if you want to Erase All Content and Settings.

⚠️ Timing matters: If the erase option doesn’t appear, try again—make sure you start pressing the Digital Crown right after releasing the side button. Even a slight delay can cause the system to miss the command.

This sequence forces the watch into reset mode without requiring access to menus or settings, making it ideal for devices with forgotten passcodes or no iPhone pairing.

Confirm and Wait for Completion

Tap Erase All Content and Settings, then confirm when prompted. The watch will begin clearing all user data. This takes 5–10 minutes. You’ll see the Apple logo during reboot, followed by the initial setup screen with language and region options.

At this point, the reset is complete—but only usable if Activation Lock has been disabled.

Reset via Paired iPhone (Remote Method)

If your Apple Watch Ultra is still paired with your iPhone, use this faster, more convenient method.

Open the Watch App

1. On your iPhone, open the Watch app.
2. Tap the “My Watch” tab.
3. Go to General > Transfer or Reset Apple Watch.
4. Tap Erase All Content and Settings.
5. Enter your Apple Watch passcode when prompted.
6. Confirm the action.

The Apple Watch will restart and begin erasing. Like the on-watch method, it ends at the setup screen.

✅ Best for troubleshooting: Use this to fix freezing, syncing issues, or app crashes without losing access to your account.

This method also automatically backs up your health and activity data to your iPhone before erasing—something the on-device reset doesn’t do. It’s the preferred option when you’re keeping the device but need a clean slate.

What Is Activation Lock? (And Why It Matters)

Even after a factory reset, your Apple Watch Ultra remains protected by Activation Lock—a security feature tied to Find My.

How Activation Lock Works

• Enabled automatically when Find My Apple Watch is turned on.
• Binds the device to the original Apple ID.
• Prevents activation by anyone else—even after a full reset.

You Can’t Bypass It Without Credentials

After reset, if the watch shows the Apple ID sign-in screen, it’s still locked. Without the previous owner’s Apple ID and password, you cannot proceed.

❌ No workaround exists. Third-party tools, “unlock services,” or repeated resets will not remove Activation Lock.

Apple designed this feature to deter theft, but it often catches well-meaning buyers off guard when purchasing used devices.

How to Remove Activation Lock

Only the original owner can disable Activation Lock.

From iCloud.com

1. Sign in to iCloud.com.
2. Open Find Devices.
3. Select Devices > Apple Watch.
4. Choose the specific Ultra model.
5. Click Remove from Account.

From iPhone (Find My App)

1. Open the Find My app.
2. Tap the Devices tab.
3. Select the Apple Watch.
4. Swipe up and tap Remove from Account.

Once removed, the watch can be reset and set up normally.

🔐 Important: This must happen before the reset. If the watch is already erased, the original owner must sign in to their iCloud account and remove it remotely.

Troubleshooting Common Reset Issues

“Erase” Option Doesn’t Appear

Check These Steps:

• 🔋 Is the watch charging? Low battery blocks the erase function.
• ⏱️ Did you time the button press correctly? Release the side button, then immediately hold the Digital Crown.
• 🧊 Try a force restart first: Press and hold both side button and Digital Crown for 10+ seconds until the Apple logo appears. Then retry the reset.

Some users report that outdated watchOS versions may interfere. Ensure your Apple Watch is updated to the latest version before attempting a reset.

Reset Fails or Watch Freezes

Force Restart and Retry

1. Press and hold side button + Digital Crown for at least 10 seconds.
2. Wait for the Apple logo to appear.
3. Once rebooted, repeat the reset steps.

If the issue persists, ensure the watch is updated to the latest watchOS version before attempting another reset.

Can’t Pair After Reset

If Pairing Fails:

• Ensure Bluetooth and Wi-Fi are on for the iPhone.
• Keep both devices within inches of each other.
• Restart the iPhone and try again.
• Make sure the iPhone runs iOS 17 or later (required for Apple Watch Ultra compatibility).

If Setup Stops at Apple ID Screen:

The watch is still Activation Locked.

You cannot pair it to a new account until the original owner removes it from their iCloud.

Buying a Used Apple Watch Ultra? Read This

Many buyers unknowingly purchase locked devices. Here’s how to avoid getting scammed.

1. Ask Seller to Unpair Before Selling

The seller should:

• Open the Watch app on their iPhone.
• Tap the My Watch tab.
• Tap their watch at the top, then select Unpair Apple Watch.
• This automatically removes it from their account and disables Activation Lock.

✅ Best proof: They provide a video of the unpairing process.

Unpairing this way ensures Activation Lock is disabled and the device is ready for new ownership.

2. Check Activation Lock Status Before Purchase

Use Apple’s official tools:

• Visit checkcoverage.apple.com.
• Enter the serial number of the Apple Watch Ultra.

If it shows “Coverage Expired” or “Valid Purchase Date,” it might be unlocked—but not guaranteed.

🔍 No direct lock status check: Apple doesn’t publicly display Activation Lock status. But if the device shows no coverage, and you can’t verify unpairing, assume it’s locked.

3. Never Buy Without Proof of Ownership

Avoid watches with:

• Unknown origin (e.g., online marketplaces with no return policy).
• No original box or documentation.
• Refusal to demonstrate unpairing.

🛑 Red flag: A seller who says, “Just reset it yourself” doesn’t understand how Activation Lock works.

Real User Experiences

Success: Reset Worked After Charging

Substantial_Ad_756: “It worked! Thank you!”
— Followed the on-watch reset after connecting to power. Erase option appeared only once charged.

Failure: Locked Secondhand Device

No_Access1939: “I got it secondhand and can’t contact the previous owner. I can’t link it to my phone.”
— Watch reset successfully but stuck at Apple ID screen. Unusable due to Activation Lock.

Expert Insight: Lock Prevents Unauthorized Use

RestartQueen: “If an Apple Watch has a passcode, it’s still paired and activation locked. You can’t reset it without the owner removing it from iCloud.”
— Emphasizes that security protects lost or stolen devices—but penalizes uninformed buyers.

Lessthanzerofucks: “Worth trying… maybe they’ll get lucky.”
— Suggests attempting a reset even on a locked device—but warns it likely won’t help.

Key Technical Details

💡 Note: Factory reset does not remove Activation Lock. Only iCloud account removal does.

Pro Tips for a Smooth Reset

• ✅ Back up first (if paired): Use iCloud or iPhone backup to save health and activity data.
• ✅ Update watchOS before resetting: Fixes bugs that could interfere.
• ✅ Use original charger: Ensures stable power delivery.
• ❌ Don’t skip the charge step: A dying battery kills the reset process.
• 🛡️ Verify unlock status before buying used: Save yourself frustration.

Final Steps After Reset

Once erased:

1. Bring the watch close to your iPhone.
2. Wait for the pairing screen to appear.
3. Tap Continue on the iPhone.
4. Follow setup prompts.
5. Restore from backup (optional) or set up as new.

If you’re selling it:

• Include original band, charger, and box.
• Provide written confirmation that the device was unpaired and removed from your account.

Conclusion

Resetting an Apple Watch Ultra is simple if you follow the correct steps: press the side button, release, then hold the Digital Crown until the erase option appears—or use the Watch app on a paired iPhone.

But here’s the truth: a factory reset alone won’t make a secondhand Apple Watch usable. If Activation Lock is still active, the device remains tied to the original Apple ID and cannot be set up by anyone else.

For buyers: Always confirm the watch has been unpaired and removed from iCloud before purchasing.

For sellers: Unpair properly using the Watch app to give the new owner a clean, functional device.

Whether you’re fixing, selling, or starting fresh, knowing how to factory reset—and what Activation Lock really means—saves time, protects your data, and prevents costly mistakes.