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

AirPods Pro 3 Mock Feature

AirPods Pro 3 Just Months Away – Here's What We Know

Friday April 18, 2025 5:16 am PDT by
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
iphone 17 air dummy unbox therapy

iPhone 17 Air's Extreme Thinness Demoed in New Video

Tuesday April 22, 2025 10:22 am PDT by
Apple plans to release an all-new super thin iPhone this year, debuting it alongside the iPhone 17, iPhone 17 Pro, and iPhone 17 Pro Max. We've seen pictures of dummy models, cases, and renders with the design, but Lewis Hilsenteger of Unbox Therapy today showed off newer dummy models that give us a better idea of just how thin the "iPhone 17 Air" will be. The iPhone 17 Air is expected to be ...
ipad air windows 11 arm

M2 iPad Air Runs Windows 11 ARM via Emulation, Thanks to EU Rules

Tuesday April 22, 2025 5:01 am PDT by
A developer has demonstrated Windows 11 ARM running on an M2 iPad Air using emulation, which has become much easier since the EU's Digital Markets Act (DMA) regulations came into effect. As spotted by Windows Latest, NTDev shared an instance of the emulation on social media and posted a video on YouTube (embedded below) demonstrating it in action. The achievement relies on new EU regulatory...
iphone 16 pro models 1

17 Reasons to Wait for the iPhone 17

Thursday April 17, 2025 4:12 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we often get rumored features months ahead of launch. The iPhone 17 series is no different, and we already have a good idea of what to expect from Apple's 2025 smartphone lineup. If you skipped the iPhone...
iOS 18

iOS 18.5 Includes Only a Few Changes So Far

Monday April 21, 2025 11:00 am PDT by
Apple seeded the third beta of iOS 18.5 to developers today, and so far the software update includes only a few minor changes. The changes are in the Mail and Settings apps. In the Mail app, you can now easily turn off contact photos directly within the app, by tapping on the circle with three dots in the top-right corner. In the Settings app, AppleCare+ coverage information is more...
iphone 17 pro majin bu sky blue

iPhone 17 Pro Allegedly Coming in Sky Blue Color Used for MacBook Air

Tuesday April 22, 2025 4:08 am PDT by
Apple will unveil the iPhone 17 Pro in a new Sky Blue color, the same color that debuted on the latest M4 MacBook Air models Apple released in March. That's according to the leaker Majin Bu. Concept mockup from Majin Bu Writing on his website, Bu claims that "sources close to the supply chain confirm that several iPhone 17 Pro prototypes have been made in various colors, with Sky Blue...
maxresdefault

iPhone 17 Pro Launching Later This Year With These 12 New Features

Sunday April 13, 2025 7:52 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Subscribe to the MacRumors YouTube channel for more videos. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and ...

Top Rated Comments

CarAnalogy Avatar
17 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
17 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)
tywebb13 Avatar
17 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)
sashavegas Avatar
17 months ago
Need to check if apple disable o2 sensor on ultra 2 on that update
Score: 5 Votes (Like | Disagree)
gank41 Avatar
17 months ago
I’m still seeing the Blood Oxygen App listed.



Attachment Image
Score: 4 Votes (Like | Disagree)
Hiroshi080 Avatar
17 months ago

I’m still seeing the Blood Oxygen App listed.


I’m assuming that if you hit start it works as it has always.
Score: 2 Votes (Like | Disagree)