After months of rigorous beta testing, Samsung is officially launching its much-anticipated One UI 8 update, which is based on the latest Android 16. This exciting rollout is first making its way to the flagship Galaxy S25 series. The initial stable build of One UI 8 for the Galaxy S25 series is approximately 3.8GB in size, and it carries the version number S938NKSU5BYI3/S938NOKR5BYI3/S938NKSU5BYI3, varying by region.
This update is currently being distributed gradually to users in South Korea, with expectations that users in the United States, United Kingdom, India, and other global markets will receive the update shortly. Included in this rollout is the September 1, 2025 security patch, ensuring that devices are equipped with the latest security measures.
The changelog for the latest update reveals several exciting features that enhance user experience. Notably, automatic call captioning has been introduced, providing users with real-time captions during phone calls for better accessibility. Additionally, the Now Brief functionality allows for quicker access to essential information and notifications, streamlining daily use.
For those interested in a more detailed overview, our One UI 8 hands-on review highlights all the changes and enhancements compared to the previous version, One UI 7.
The stable rollout of One UI 8 to the Galaxy S25 series represents a significant milestone in Samsung’s expansion plans for its latest software. Prior to this launch, stable versions of One UI 8 were exclusively available on the new Galaxy Z Fold 7, Galaxy Z Flip 7, and Galaxy Z Flip 7 FE. It's intriguing to consider that users might upgrade to the latest flagship devices primarily to access the newest software features.
While Samsung has not yet disclosed which devices will receive stable One UI 8 in September, users are hopeful for a broader rollout to include more of Samsung's extensive device lineup. Furthermore, the company has indicated plans to expand the availability of One UI 8 Watch beyond the Galaxy Watch 8 series later this year, promising even more features and enhancements for smartwatch users.