Samsung One UI 9.5 beta may be coming soon: Here's how to sign up for the program
Samsung appears to be preparing the One UI 9.5 beta program ahead of an expected 2027 launch. Here's what to do if you want to test Samsung's latest OS.
Beta firmware for the Galaxy S26 Ultra has emerged on Samsung's Korean and US update servers, signifying the imminent arrival of One UI 9.5. Although Samsung has not announced a specific date or launched the beta, the Galaxy S27 is expected to debut with this new interface early in 2027. To participate in the program, users must have a Samsung account and the Samsung Members app, then enroll through the app if their device and country are eligible—currently limited to six nations and the S26 Ultra.
The beta build, identified as S948BXXU6ZZK3, is exclusively for the S26 Ultra, though other S26 models may also receive it. Previous One UI updates, including 8.5 and 9.0, opened to testers in December 2025, with stable releases following in early 2026. Samsung's Unpacked event for the S27 is anticipated in January or February, with enthusiast sites projecting beta sign-ups in November.
Enthusiasts should back up their phones, join the beta via Samsung Members, and report any issues during the testing phase. Exiting the beta involves a downgrade process using Smart Switch, which will erase all beta-related data.
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