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Samsung rolls out One UI 9 and Android 17 to Galaxy S26 series, US release begins on T-Mobile

9 publications · September 16, 2026

Key points

Samsung officially began rolling out One UI 9, based on Android 17, to the Galaxy S26, S26+, and S26 Ultra starting September 16 in South Korea.
The global rollout expanded on September 21, with the US among the first regions reached; Android Authority and PhoneArena specifically note T-Mobile as an early carrier receiving the update.
Android 17 comes pre-installed on the Galaxy S26 FE, Galaxy Z Fold 8 Ultra, Galaxy Z Fold 8, and Galaxy Z Flip 8.
One UI 9 introduces three highlighted features: NowNudge (AI-assisted in-chat actions such as booking or calendar creation), NowBrief (customisable daily summaries covering sleep, weather, and appointments), and My FanCam (automatic subject-centred video framing).
The rollout follows a public beta campaign and arrives roughly three months after Android 17 launched on Google Pixel devices.
Samsung has announced a phased schedule that will extend the update to older flagship phones and tablets after the S26 series.

Summary (AI)

Samsung announced the One UI 9 rollout on September 16, starting in South Korea, with a staged global release from September 21. On September 23 it began reaching T-Mobile customers in the US, and all three S26 models appear to be included.

The rollout follows a public beta and comes about three months after Android 17 debuted on Pixel phones. Samsung has published a phased schedule for older flagships and tablets.

Sources

10 articles from 9 publications

Ubergizmo Sep 17, 2026