Apple Seeds Release Candidate Version of watchOS 10.3 - MacRumors
Skip to Content

Apple Seeds Release Candidate Version of watchOS 10.3

Apple today seeded the release candidate version of the upcoming watchOS 10.3 update to developers and public beta testers, with the beta coming a week after the release of the third watchOS 10.3 beta. The release candidate represents the final version of watchOS 10.3 that will be provided to the public next week when watchOS 10.3 launches.

Apple Watch Faces watchOS 10 Feature Blue
To install the ‌watchOS 10.3‌ update, developers will need to open the Apple Watch app, go to the Software Update section under "General" in Settings, and toggle on the watchOS 10 Developer Beta. An Apple ID linked to a developer account is required.

Once beta updates have been activated, watchOS 10.3 can be downloaded under the same Software Update section. To install software, an Apple Watch needs to have 50 percent battery life and it must be placed on an Apple Watch charger.

There's no word yet on the new features that might be included in watchOS 10.3 beyond a new Unity Bloom watch face, and no notable new features were found during the beta testing process.

Full release notes are below:

watchOS 10.3 includes new features, improvements, and bug fixes, including new Unity Bloom watch face to honor Black history and culture in celebration of Black History Month.

Popular Stories

iPhone 18 Pro Deep Red Feature

iPhone 18 Pro Launching in Two Months With These 12 New Features

Friday July 17, 2026 10:39 am PDT by
It is now mid-July, and that means the iPhone 18 Pro and iPhone 18 Pro Max are now just two months away. The devices are expected to look similar to the iPhone 17 Pro and iPhone 17 Pro Max, but there will still be many year-over-year changes, with rumored features including a smaller Dynamic Island, 5G via satellite, and more. Apple is expected to unveil the iPhone 18 Pro, iPhone 18 Pro Max, ...
iCloud General Feature Redux

Apple Raises iCloud+ Prices in 8 Countries

Friday July 17, 2026 11:56 am PDT by
Apple has increased the price of iCloud+ in Nigeria, Türkiye, Vietnam, Japan, Egypt, New Zealand, the Philippines, and Indonesia, according to an updated version of its iCloud support document. Price increases range from 11 percent to 55 percent depending on the plan and the country. Nigeria saw the biggest hike, and a 50GB plan is now ₦1,300, up from ₦900. Türkiye saw the next largest...
iPhone 17 17 Pro and Air Feature

Apple Raises iPhone Prices in Japan

Friday July 17, 2026 12:45 pm PDT by
After raising prices on all Macs and iPads worldwide last month, Apple has now increased the price of iPhone models in Japan. As spotted by the Spanish blog iPhoneros, the iPhone 16, iPhone 17e, iPhone 17, iPhone Air, iPhone 17 Pro, and iPhone 17 Pro Max all received price increases on Apple's online store in Japan today. Prices increased by up to 11%. Model Previous...

Top Rated Comments

33 months ago

Does anyone know if this release will remove the blood oxygen monitoring feature Apple stated they would remove to avoid the Apple Watch sales ban?

Need to check if apple disable o2 sensor on ultra 2 on that update
Get on it, MacRumors. This is the kind of investigative journalism we need you for. Inquiring minds want to know!
Score: 7 Votes (Like | Disagree)
dvdvd Avatar
33 months ago
Does anyone know if this release will remove the blood oxygen monitoring feature Apple stated they would remove to avoid the Apple Watch sales ban?
Score: 7 Votes (Like | Disagree)
33 months ago

Does anyone know if this release will remove the blood oxygen monitoring feature Apple stated they would remove to avoid the Apple Watch sales ban?
Even if they don't remove it in this RC build 21S644 - suppose they make a public release with build 21S645 removing O2 monitoring on ALL apple watches in ALL countries!

Then don't update the watch at all!

Go to apple store asking for refund telling them you bought the apple watch for O2 functionality (even if you didn't).

If they say no, this opens them up to a whole lot more legal trouble because consumer protection legislation in many countries stipulate that if a device does not function as advertised then you are in fact entitled to a FULL REFUND.
Score: 6 Votes (Like | Disagree)
33 months ago
Need to check if apple disable o2 sensor on ultra 2 on that update
Score: 5 Votes (Like | Disagree)
gank41 Avatar
33 months ago
I’m still seeing the Blood Oxygen App listed.



Attachment Image
Score: 4 Votes (Like | Disagree)
33 months ago

Yes, app continues to work just fine
Good to know much appreciated!
Score: 2 Votes (Like | Disagree)