watchOS 10 (RC) Release Candidate is out! Update Now!

watchOS 10, the milestone upgrade, reaches the last stage of testing. Apple today releases the watchOS 10 release candidate build for testers. The iOS 17 Release Candidate is also available.

For unawares, RC aka Release Candidate is the new name for Apple’s Golden Master builds. If everything goes well with today’s watchOS 10 release candidate, Apple will push it to the public next week.

If your Apple Watch is running on watchOS 10 beta, then you can now upgrade your watch to the more stable release candidate build.

Let’s take a look at what’s new in watchOS 10 release candidate along with the update size and build number.

Apple plants the watchOS 10 RC on all eligible Apple Watch models with a 21R356 build number and measures around 300MB in size. The update size of course vary depending on your previous update. The new software upgrade is available for Apple Watch Series 4 and newer models. Currently, it is available for testers. The stable build’s release is set for next week.

Talking about the features, then watchOS 10 is a remarkable upgrade for the Apple Watch. It brings the new smart stack, a new way to access the control center, new watch faces, health features, apps that are now optimized for full screen, and much more. You can head over to this page to explore more about the watchOS 10.

Speaking of today’s release, then we can expect bug fixes and overall improvements across the system.

Download and Install watchOS 10 Release Candidate

If your Apple Watch is running on the watchOS 10 beta, then you can easily update your Watch to the release candidate. Before heading over to the steps, make sure that your iPhone or iPad is running on the latest iOS 17 RC.

  1. At first, open the Apple Watch app on your iPhone.
  2. Tap on My Watch.
  3. Then click on General > Software Update > Download and Install.
  4. Enter the password for confirmation.
  5. Tap on Agree to the terms and conditions.
  6. Once done, tap on install.


  • Charge your Apple Watch to at least 50% and connected to the magnetic charger.
  • Connect your iPhone to a Wi-Fi for internet connection.
  • Make sure that your iPhone is running on iOS 17 RC.

Once you tap the install button, it will download and install the newest update on your Apple Watch. Once the installation process is completed, the watch will automatically reboot to the latest watchOS 10 release candidate.

If you still want to know anything, then you can leave a comment in the comment box.

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By Haneet Singh

Haneet is a passionate tech writer and a consumer. He loves tinkering with the newest tech - smartphones, wearables, laptops, smart TVs, and other smart home devices. For tips, you can connect Haneet at

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