Samsung Galaxy Watch8 owners have reason to celebrate, as the long-awaited stable release of One UI 9 Watch — built on Google's Wear OS 7 platform — has officially begun its rollout.
Samsung Galaxy Watch8
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To recap the journey so far: Google introduced Wear OS 7 back in May, with its own Pixel Watch lineup gaining access to the software in June. Samsung, meanwhile, took a bit longer to adapt the platform into its custom One UI 9 Watch skin, opening up beta testing for Galaxy Watch8 users toward the end of August.
Now, following months of testing, the Korean tech giant has kicked off the official rollout of the finished software. Staying true to Samsung's recent update strategy, South Korea is the first market to receive it. There, the firmware is landing over-the-air under build number L320XXU2BZJ7, and users should prepare for a hefty download weighing in at approximately 2GB.
Samsung Galaxy Watch8 One UI 9 Watch update
Provided the initial deployment in Korea goes smoothly without any major bugs surfacing, we can expect the update to expand to additional regions over the next several days — a pattern Samsung has consistently followed with its recent software releases. Notably, the package also incorporates the October 5, 2026 security patch, keeping the wearable protected with the latest defenses.
Once the Galaxy Watch8 rollout is complete, Samsung is expected to turn its attention to its earlier smartwatch models, delivering One UI 9 Watch to those devices as well. Stay tuned for further updates as the rollout progresses.
