Samsung’s One UI 9 is its Android 17-based software update for Galaxy devices. The stable rollout began on September 16, 2026, first reaching the Galaxy S26, Galaxy S26+ and Galaxy S26 Ultra. Samsung is releasing it in phases, so the date on a particular phone can differ by country, carrier and model.
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The short version: who has it, and who is next?
- Stable rollout started: Galaxy S26, S26+ and S26 Ultra.
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- Ships with One UI 9: Galaxy S26 FE, Galaxy Z Fold8 Ultra, Galaxy Z Fold8 and Galaxy Z Flip8.
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- Thailand’s published schedule: Galaxy S26 series from September 21; Galaxy S25 series and Galaxy Z Fold7/Z Flip7 from September 28; Galaxy S23 FE by October 2026. These are Thailand-specific dates, not a worldwide promise.
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- Likely later waves: Galaxy S24 series, Galaxy S23/S23+/S23 Ultra, and selected newer Galaxy A devices appear in reported eligibility and testing lists, but Samsung has not supplied a universal stable-update date for each.
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- Outside the expected Android 17 upgrade cycle: Galaxy S22, S22+, S22 Ultra, Galaxy Z Fold4 and Galaxy Z Flip4.
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One UI 9 rollout timeline
First stable release: Galaxy S26 series
Samsung’s official global announcement says the stable One UI 9 release started September 16 with the Galaxy S26, S26+ and S26 Ultra.
4 The newer S26 FE and Fold8/Flip8 generation launched with the software already installed rather than waiting for an over-the-air update.
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Thailand: the clearest country-specific roadmap
Samsung Thailand’s rollout is more specific than the global announcement:
| Timing in Thailand |
Galaxy devices named |
| September 21, 2026 |
Galaxy S26 series |
| September 28, 2026 |
Galaxy S25 series and Galaxy Z7 series, including Z Fold7 and Z Flip7 |
| By October 2026 |
Galaxy S23 FE |
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Treat this as a local schedule. A September 28 date in Thailand does not establish the same release date for the US, Europe, India or every carrier variant. Samsung’s broader rollout is phased.
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Galaxy S24 and regular Galaxy S23 models
The Galaxy S24, S24+, S24 Ultra, S24 FE, Galaxy S23, S23+ and S23 Ultra appear on reported One UI 9 device lists, alongside the S23 FE.
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47 However, the available official Thailand notice only explicitly dates the S23 FE, not every S24 or regular S23 model. It is therefore more accurate to view the remaining S24 and S23 releases as pending regional rollout information rather than assign an exact date.
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Galaxy A55 and A35: beta activity is not a stable date
The Galaxy A55 and Galaxy A35 have appeared in One UI 9 beta or testing coverage.
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48 That is encouraging evidence that Samsung is preparing the software for those phones, but it is not a confirmed stable-release timetable. No supplied Samsung rollout notice gives a global or Thailand stable date for either the A55 or A35.
If you own one, check Settings > Software update > Download and install and Samsung Members for availability in your market. A beta listing or test build should not be mistaken for the public stable update.
Devices that are not expected to get One UI 9
The Galaxy S22, S22+ and S22 Ultra, plus the Galaxy Z Fold4 and Z Flip4, are widely listed as outside the One UI 9 / Android 17 major-version cycle.
51 This concerns the Android-version upgrade; it does not by itself determine whether a device will receive future security patches, which follow separate support schedules.
What is new in One UI 9?
My FanCam: AI video subject tracking
My FanCam automatically follows a selected person in a recorded video, reframing the footage to keep that subject centered as the scene changes. It is the most prominent camera and video feature Samsung has highlighted for One UI 9.
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More Galaxy AI tools for daily tasks
Samsung highlights several AI-led additions and refinements:
- Now Nudge offers context-sensitive prompts and actions.
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- Now Brief gains generative, editable cards.
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- Creative Studio, an upgraded Interpreter, and improvements to Document Scan and Voice Recorder are also part of the feature set Samsung has promoted.
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Security and privacy summaries
One UI 9 adds Security Brief, which surfaces security and privacy information, including alerts related to malware, unknown-source apps and unnecessary permissions.
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7 Samsung also lists Privacy Alerts and Scam Detection among the new security-oriented tools.
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Warranty and Care inside Settings
Warranty and Care places support and protection controls in the Settings app. Samsung says users can view warranty coverage for connected mobile devices, run self-diagnostics, see repair estimates, manage Samsung Care+, and book service appointments.
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What to expect after installing it
One UI 9 is not a guarantee that every new feature will appear on every eligible Galaxy. Samsung notes that availability can vary by device and market, while AI features can depend on hardware, language, account and network conditions.
4 The practical expectation is simple: the Android 17 base update may arrive for a device before all of the headline AI capabilities are enabled for that exact model or region.
For the most reliable status, use Samsung’s local Newsroom and your phone’s Software update page rather than relying on a rollout date reported for another country.