Samsung One UI 9 Update: Eligible Devices and S23 Rollout
Samsung's Android 17-based One UI 9 is rolling out now, and the Galaxy S23 series is getting it as its final major upgrade. Here are the eligible devices, rollout dates and steps to update.
- The Galaxy S23, S23+ and S23 Ultra are getting One UI 9 (Android 17), starting in South Korea on October 14, 2026, then Europe and US carriers.
- It is the S23 series' last major Android upgrade; the S23 FE is expected to get it too but had no confirmed date as of October 26.
- To check, go to Settings, then Software update, then Download and install.
Yes, the Galaxy S23, S23+ and S23 Ultra are getting One UI 9, Samsung's Android 17-based update. The stable version reached those phones in South Korea on October 14, 2026, and has since spread to Europe and some US carriers. The Galaxy S23 FE is expected to get it as well, but as of October 26, 2026, update trackers show no confirmed stable release for it.
One UI 9 is also the last major Android upgrade for the S23 family. Below: what's new, which devices are eligible, where the rollout stands and how to install it.
What is One UI 9?
One UI 9 is Samsung's version of Android 17. It debuted in stable form on July 22, 2026, preinstalled on the Galaxy Z Fold 8, Z Fold 8 Ultra and Z Flip 8, according to Android Authority. Samsung had opened a beta for the Galaxy S26 series on May 12, per SamMobile. If you are weighing those new foldables, see our Galaxy Z Fold 8 vs iPhone Duo comparison.
What's new in One UI 9
Samsung has not published one complete changelog, and Android Authority notes the company did not detail every change over One UI 8. Features reported so far include:
- AI Assistant Activity dashboard: one place to see what AI agents have done for you, with links to their settings (Android Authority).
- Stronger privacy alerts: early warnings when apps ask for background permissions they don't need (Android Authority and TelecomTalk).
- Warranty and Care: a Settings section showing warranty status, diagnostics and repair requests.
- Easier moves from iPhone: Smart Switch can transfer data wirelessly via a QR code, including passwords, passkeys, call logs and eSIM data.
- Quick Panel and productivity: more Quick Panel customisation, Samsung DeX and Samsung Notes improvements, accessibility upgrades and a location privacy indicator, according to SamMobile's S23 coverage.
- Android 17 changes: apps that can open in floating bubbles and a contacts picker that shares only the contacts you select (SamMobile).
Not every feature reaches every phone. Tools such as My FanCam launched as foldable features, and TelecomTalk reports some One UI 9 features are missing on S23 models.
Which Samsung devices get One UI 9?
Eligibility follows Samsung's update promises for each model. SamMobile's eligibility list, which it says is built from Samsung's update policy and is not an official Samsung list, includes:
- Galaxy S: S26 series, S25 series, S24 series including the S24 FE, and the S23, S23+ and S23 Ultra.
- Foldables: Z TriFold, Z Fold 7, Z Flip 7, Z Flip 7 FE, Z Fold 6, Z Flip 6, Z Fold Special Edition, Z Fold 5 and Z Flip 5.
- Galaxy A: A57, A37, A27, A17, A07, A56, A36, A26, A16, A06 5G, A55, A35, A25, A15, A54, A34 and A24.
- Tablets: Tab S11 and S11 Ultra, the Tab S10 and Tab S9 families, Tab S6 Lite (2024), Tab Active 5 and Active 5 Pro, and Tab A11 and A11+.
- Others: several Galaxy M, F and XCover models.
The Z Fold 8 and Z Flip 8 ship with One UI 9, so they do not need the upgrade. Galaxy S22 phones and older are not on these lists. Digital Trends reports that Samsung's Japanese newsroom has also published a schedule for Japanese models, running from mid-October for the S26 to late November for some tablets; that timetable applies to Japan only.
Does the Galaxy S23 get One UI 9?
Yes. The S23 series launched in February 2023 on Android 13 with a promise of four major Android upgrades, so Android 17 is its fourth and final one, according to SamMobile and TelecomTalk. Security patches continue for a fifth year, which TelecomTalk says runs into 2028.
Where the S23 rollout stands:
- South Korea, October 14: stable builds started reaching S23 phones enrolled in the beta, alongside the Z Fold 5 and Z Flip 5, according to GSMArena and Android Authority.
- Europe, from about October 19: SamMobile reported firmware S91xBXXUAGZIF, a 516.69MB download that went to beta users first.
- United States, from October 20: the SammyGuru rollout tracker lists T-Mobile, AT&T and US Cellular models, with unlocked and Verizon phones still pending as of October 21. Sammy Fans has since reported the update reaching S23 phones in the US.
- Japan: Samsung Japan's schedule, as reported by Digital Trends, lists the S23 Ultra for mid-November.
Download size depends on where you start. GSMArena reports under 500MB for former beta testers and about 3GB for everyone else.
What about the Galaxy S23 FE?
The S23 FE also launched on Android 13 with four upgrades promised, so One UI 9 should be its last major update. SamMobile spotted One UI 9 test firmware for the FE on Samsung's servers in July. A later SamMobile report said Android 17 will be the FE's final major update, based on a screenshot of an exchange with Samsung shared by tipster Tarun Vats rather than an official announcement.
However, the FE was not part of the October 14 release, and SammyGuru lists no date for it. The tracker says Samsung Thailand changed the FE's timing from October to "later this year." Until Samsung confirms a date, FE owners should expect it after the main S23 models.
One UI 9 rollout schedule so far
Samsung has released One UI 9 newest phones first, usually starting in South Korea and then expanding by region and carrier:
- September 16: Galaxy S26 series (Sammy Fans, SammyGuru).
- September 28: Galaxy S25, S25+ and S25 Ultra, followed hours later by the S25 Edge and S25 FE, plus the Z Fold 7 and Z Flip 7 (Android Headlines, Sammy Fans).
- Early October: Galaxy S24 series, Z Fold 6 and Z Flip 6, reported by GSMArena on October 7.
- October 14: Galaxy S23, S23+ and S23 Ultra, Z Fold 5 and Z Flip 5.
- Mid to late October: Galaxy A models including the A57, A37, A27, A56 and A36, according to SammyGuru and Sammy Fans.
Each older flagship generation has trailed the one before it by roughly one to two weeks in Korea, with other regions following within days.
How to update to One UI 9
Samsung delivers the update over the air in stages by country, carrier and model, so it may reach someone else's phone before yours. To check manually, Samsung's support page gives these steps:
- Open Settings.
- Tap Software update (on some models, System updates).
- Tap Download and install, or Check for software updates, depending on your carrier.
- If an update is available, let it download, then follow the on-screen prompts to install it.
Samsung notes that some carriers require Wi-Fi to check for and install updates, and that the phone cannot be used during installation, including for emergency calls. It also warns that it is not responsible for lost data, so back up important files first. You can also update through Samsung's Smart Switch app on a Windows PC or Mac.
If nothing appears, your model, region or carrier may not be in the current wave yet.
Our take
Based on the reporting, Samsung's rollout has followed a predictable newest-first pattern. For S23 owners, the update reaching Europe and several US carriers within a week of Korea suggests most remaining regions should follow soon, though unlocked and Verizon models in the US were still pending as of October 21.
The bigger point is longevity. This is the S23's final major Android upgrade, and SamMobile considers a later One UI 9.5 unlikely for these phones. After this, S23 owners can expect security patches rather than new Android versions. If you are thinking about a replacement, our OPPO Find X10 Pro Max explainer covers one of the newest Android flagships.
What to watch next
- A confirmed stable date for the Galaxy S23 FE.
- Unlocked and Verizon S23 models in the US, which trackers listed as pending.
- Mid-November, when Samsung Japan expects the S23 Ultra and Z Fold 5 and Z Flip 5 to update.
- More Galaxy A, M and F models, several of which were still on beta builds in late October.
Frequently asked questions
Will the Galaxy S23 get One UI 9?
Yes. The Galaxy S23, S23+ and S23 Ultra started receiving stable One UI 9 in South Korea on October 14, 2026, and it has since reached Europe and some US carrier models. Other regions are following in stages.
Does the Galaxy S23 FE get One UI 9?
It is expected to, because Samsung promised the S23 FE four major Android upgrades and One UI 9 would be the fourth. As of October 26, 2026, trackers list no confirmed stable release date for the FE.
Is One UI 9 the last update for the Galaxy S23?
It is the last major Android version upgrade for the S23 series. Reports say the phones will keep receiving security patches into 2028.
How do I update my Samsung phone to One UI 9?
Open Settings, tap Software update, then tap Download and install. If an update is available, download it and follow the prompts. Some carriers require Wi-Fi for updates, and backing up your data first is sensible.
Why haven't I received One UI 9 yet?
Samsung releases updates in waves by country, carrier and model, usually starting in South Korea. If your device is eligible but nothing appears, your region or carrier may not be in the current wave yet.
Sources
- How to update your Galaxy phone or tablet, Samsung
- One UI 9 is coming to your Galaxy phone soon. Here's when you can expect it, Digital Trends
- Every Galaxy phone and tablet eligible to get One UI 9 (Android 17) update, SamMobile
- Samsung One UI 9.0: Everything you need to know, SamMobile
- Galaxy S23 stable One UI 9.0 (Android 17) update is out, SamMobile
- Galaxy S23 stable One UI 9.0 (Android 17) update goes global, SamMobile
- Galaxy S23 FE's One UI 9.0 update is now in development, SamMobile
- Galaxy S23 series to receive One UI 9.0 as its last major update, Samsung confirms, SamMobile
- Samsung launches One UI 9 stable, but your Galaxy S26 will have to wait, Android Authority
- Samsung is expanding One UI 9 with Android 17 to the oldest qualifying flagships, Android Authority
- Samsung rolls out One UI 9 stable update for the Galaxy S23 series, Fold5, and Flip5, GSMArena
- Samsung rolls out stable One UI 9 to the Galaxy S24 series, Galaxy Z Fold6 and Flip6, GSMArena
- Samsung Brings One UI 9 for Galaxy S23: Which Phone Next?, TelecomTalk
- One UI 9.0 official update now rolling out to these Samsung phones, Sammy Fans
- One UI 9 Rollout Tracker: Where Stable Has Actually Arrived, SammyGuru
- Galaxy S25 Users Are Finally Getting the Stable One UI 9 Update, Android Headlines
How we wrote this
GessyMorgan explainers are built from public reporting and official sources. This post draws on the 16 sources listed above, each linked where we use it. It was drafted with AI assistance and checked against those sources before publishing. We did not test products, attend events or interview anyone for this article. Facts are current as of October 26, 2026, and we update the post when they change.
