Samsung has kicked off a One UI 9 beta program for the Galaxy S26, Galaxy S26 Plus, and Galaxy S26 Ultra, moving faster than many expected after the final One UI 8.5 rollout. The test build arrives this week, but the usual small print applies: it is limited to South Korea, Poland, Germany, the United Kingdom, the United States, and India, with enrollment handled through Samsung Members.
One UI 9.0 is built on Android 17 and brings a heavier dose of AI features plus more flexible interface customization. Samsung is also reshaping the Quick Panel, giving users more control over element placement, including brightness, which is the kind of change power users notice immediately, and everyone else ignores until they try to find the toggle they moved.
Quick Panel and security changes in One UI 9
The more interesting addition is security. Samsung says One UI 9 will be better at spotting suspicious apps earlier and can even recommend removal through updated security policies. That fits a broader pattern across Android skins: manufacturers are no longer trying to win only on flashy features, but on making the phone feel safer and less annoying to live with.
Beta access usually starts narrow and then widens as bugs get knocked out, and Samsung is following that familiar script here. The company has already moved One UI 8.5 to the Galaxy S25, Galaxy S25 Plus, Galaxy S25 Ultra, and Galaxy S25 FE, which means the software cadence is tightening just as rivals keep pushing their own AI-heavy Android builds.
When the final One UI 9 build should arrive
The final version of One UI 9.0 is expected in the second half of the year, most likely after Samsung’s next foldables, the Galaxy Z Fold8 and Galaxy Z Flip 8. If that plays out, those phones will be the first Samsung devices to ship with One UI 9.0 out of the box, while the Galaxy S26 series does the awkward but useful job of public beta test bed.