Reports dated October 6, 2026, described stable One UI 9 expanding to the Galaxy S25 family in Europe, with Spain among the markets being reached. The rollout was reported as staged, so the update was not arriving on every phone at once. U.S. reports of S25 updates had appeared on October 3.

The latest S25 rollout report came from Europe

One UI 9, based on Android 17, was reported to be expanding to the Galaxy S25 family in Europe on October 6. Spain was among the markets reportedly being reached. Earlier reports described the stable rollout in South Korea; NeoTeo covered that development in an earlier article.

Samsung announced on September 16 that the broader One UI 9 rollout had begun with the Galaxy S26, Galaxy S26+, and Galaxy S26 Ultra, with other Galaxy devices to follow gradually. The later S25 rollout was reported separately.

What was reported in the United States

A U.S. rollout to the Galaxy S25 family was reported on October 3. Individual users described receiving the update at different times, while others were still waiting—a pattern consistent with a staged release, not a single nationwide arrival.

How to check your Galaxy S25

Open Settings > Software update > Download and install. The phone checks whether an update is available for that device. Because the rollout is staged, the update may appear on one S25 before another.

Why the download size can differ

The reported package size depends on the software already installed. For Galaxy S25 owners moving from the One UI 9 beta to the stable release, the download was reported at about 550 MB. For phones updating from One UI 8.5, the reported package was more than 3 GB.

Features Samsung describes in One UI 9

Samsung’s One UI 9 announcement lists My FanCam, editable cards in Now Brief, Now Nudge, Document Scan, Voice Recorder summaries, Security Brief, and Privacy Alerts. My FanCam is described as tracking a selected person in recorded video. Samsung specifically lists Privacy Alerts support for the Galaxy S25 family; feature availability can vary by device and market.