Apple Releases watchOS 26.3Apple today released watchOS 26.3, an update to the
watchOS 26 operating system that came out in September. watchOS 26.3 comes two months after Apple
released watchOS 26.2.
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https://images.macrumors.com/article-new/2025/06/watchos-26-gradient-light.jpg" alt="" width="1600" height="900" />
watchOS 26.3 can be downloaded for free on an
iPhone running iOS 26.3 by opening up the Apple Watch app and going to General > Software Update, or initiating an update in the Settings app on the watch. To install the new software, the Apple Watch needs to have at least 50 percent battery and it needs to be placed on a charger.
According to Apple's release notes, watchOS 26.3 includes unspecified bug fixes and security updates, and there were no new outward-facing features discovered during the beta testing process.<div class="linkback">Related Roundup:
watchOS 26</div><div class="linkback">Related Forum:
Apple Watch</div>
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Apple Releases watchOS 26.3