Samsung is expanding its One UI 9 rollout to older Galaxy phones, 9to5Google reported, bringing the Android 17 based update to devices well beyond the foldables that got it first.

A rollout that’s taken longer than usual
Testing for One UI 9 started back in May 2026, and the stable version didn’t actually ship until July, landing first on the Galaxy Z Fold 8 and Flip 8. Only in mid-September did Samsung start pushing it to older devices, a gap of roughly two months between the foldables and everything else, longer than the rollout windows Samsung has typically managed with recent One UI versions.
Which phones are getting it now
The Galaxy S26 series is in the middle of a global rollout, reaching users across the US, South Korea, Europe and India. Behind it, Samsung is pushing the update to the Galaxy S25 series, including the FE and Edge variants, along with the Galaxy Z TriFold, Z Fold 7, Z Flip 7 and Z Flip 7 FE. That’s a wide spread of current and recent flagship hardware, though notably it’s arriving in stages rather than all at once.

A modest download for a major version bump
The update itself is roughly 4GB, in line with what a full Android version jump typically weighs on a modern Galaxy phone. What’s missing from the rollout coverage so far is any detail on what One UI 9 actually changes day to day beyond the Android 17 base, Samsung hasn’t publicized a feature list tied to this specific wave, so anyone updating today is mostly getting the underlying platform upgrade rather than a headline new feature.
Why the delay is worth watching
A slower rollout than usual doesn’t necessarily mean trouble, but it does mean Samsung spent extra months validating the update across a lineup that now spans slab phones, book-style folds and a tri-fold design all at once. That added complexity, more form factors than Samsung has ever had to support simultaneously, is a plausible reason stability testing took longer this cycle, even though Samsung hasn’t said so directly.
Source: 9to5Google
