To check the watchOS version on an Apple Watch, open the Watch app on your iPhone, tap My Watch, then General > About, and look at the Version line. On the watch itself, open Settings > General > About. The number shown is the watchOS version currently installed.
Knowing the version helps when a feature or troubleshooting guide says it needs a specific release.
Quick Answer
iPhone Watch app > My Watch > General > About > Version. Or on the watch: Settings > General > About.
Check the Version on Your iPhone
- Open the Watch app on the paired iPhone.
- Tap the My Watch tab at the bottom.
- Tap General, then About.
- Read the Version row. The number in parentheses is the build number.
Check the Version on the Watch
- Press the Digital Crown to see your apps and open Settings.
- Tap General > About.
- Scroll to the Version (watchOS version) line.
The same About screen also lists the model, model number, serial number, and storage capacity.
How to Update watchOS
- Put the watch on its charger and keep it close to the iPhone, which should be on Wi-Fi.
- In the Watch app, go to My Watch > General > Software Update, or on the watch, Settings > General > Software Update.
- Tap Download and Install if an update is available.
The iPhone may need to be updated first, because each watchOS release requires a matching minimum iOS version.
watchOS Version Numbers Explained
| Question | Answer |
|---|---|
| Why did watchOS jump from 11 to 26? | In 2025 Apple switched to year-based numbers across its systems, so the release after watchOS 11 is watchOS 26. |
| What does the number in parentheses mean? | It’s the build number, useful when reporting bugs. |
| Why isn’t the newest version offered? | Older watch models stop receiving major updates; check Apple’s list of supported models. |
| Is a point update (26.1, 26.2) important? | Yes. These usually include bug and security fixes. |
Have an older iPad too? Here’s the latest iPadOS for the iPad 6th generation.
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Troubleshooting
- About is empty or the Watch app shows no watch: The watch isn’t paired or connected. Bring it close to the iPhone and turn on Bluetooth.
- Software Update is stuck: Keep the watch on the charger with at least 50% battery, restart both devices, and try again.
- Not enough space to update: Remove music, photos, or apps from the watch in the Watch app.
More Apple Watch settings: switch to a 24-hour clock or turn off message read receipts.
Related: Reset an Apple Watch Series 3 without the passcode.
Frequently Asked Questions
Can I check the version without the iPhone?
Yes. Use Settings > General > About on the watch itself.
How do I know which Apple Watch model I have?
The About screen shows the Model Name, or tap Model Number to see the part number you can look up on Apple’s support site.
Can I downgrade watchOS?
No. Apple doesn’t provide a way for users to install an older watchOS version.
Summary
- Open the Watch app on your iPhone.
- Tap My Watch > General > About.
- Read the Version line.
- Use Software Update on the same General screen to update.
Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.