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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Haneet Singh

Haneet is the Founder and Editor-In-Chief of YTECHB. He has a huge passion for tinkering with latest smartphones, wearables, smart home devices, smart TVs, and more. As an avid Apple Ecosystem user, he loves customizing his iPhone and iPad to suit his needs. For tips, you can connect Haneet at In 2019, Haneet and the YTECHB team exclusively shared the wallpapers of iPhone 11 right before the launch event. In 2020, Haneet alongside his team members shared exclusive renders and official photos of two Samsung Galaxy smartphones - the Galaxy M11, and Galaxy M21. Later, the YTECHB team leaks information about Motorola's feature phones and Razr 3. In the last few months, our team shared Galaxy S24 Ultra leaks and more. You may come across his work getting mentioned in The Times of India, India Today, Hindustan Times, NDTV, TechRadar, Digital Trends, Yahoo News, GSMArena, Android Authority, Android Central, Android Headlines, SamMobile, XDA, 9to5Google, and many other publications. He works across news, updates, features, guides, and more. If YTECHB writes about it, you can expect him to be involved in some way.

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