Samsung kicks off update to its Galaxy smartphone skin: One UI 8 is now official and arrives on Android 16 with a clear focus on stability, security, and artificial intelligence. The rollout begins today and will expand in phases to more countries and models.
This time the pace is faster than the previous cycle: after the problems of One UI 7, the company has accelerated the roadmap and just five months laterAs usual, in Spain, you'll have to wait a few days until the update appears on all compatible devices.
Deployment and availability
The launch begins in South Korea and will gradually roll out to markets around the world. Samsung is prioritizing its latest range, so the Galaxy S25 family (S25, S25+, S25 Ultra and S25 Edge) top the list, with the calendar expanding to S24, foldables and other models in the coming weeks.
Those who participated in the beta receive a lighter package: the stable build identified as YI7 takes up about 555 MB, while users downgrading from One UI 7 will have a full download, YI3 with about 4 GBIn Korea, the Galaxy S25 Ultra is updating with reference firmware BYI3, a detail that illustrates the start of the stable rollout.
The company has confirmed that the launch is global and will reach all countries in which it operates, including Spain, in a phased process that may vary by region, model, and carrier. To check if it's available now, just go to Settings → Software Update → Download and Install from the device itself.
With this move, the Galaxy are among the first to update to Android 16 within the traditional Android ecosystem, with the exception of Google's Pixels, which set the pace for the system's base calendar.
Samsung has also closed the cycle of previous tests: the beta program One UI 8 launched in May, expanded to more countries, and completed its seventh iteration on September 8 with minor changes and stability fixes.
Key New Features: AI, Experience, and Performance
One UI 8 prioritizes bringing the features released in the latest Galaxy to more devices, with a layer that press the accelerator of artificial intelligence without introducing aesthetic revolutions: there are discreet visual tweaks, smoother animations and an interface that feels more polished than the previous version.
Among the smart functions are: Now Brief, a panel that updates relevant information throughout the day based on your habits, and Now Bar, a real-time contextual notification that can display everything from player progress to flight alerts or sleep data.
There are also improvements in integration with Google: Gemini Live allows you to interact with AI by voice in a natural and real-time way, while Circle to Search expands its usefulness with instant game results and on-the-fly on-screen translations.
In productivity, the new AI results view keeps the original content in view in a split or floating window, and large screens win with Multi-screen and drag and drop AI-generated content in the workflow. Drawing and writing assistants are also being strengthened to streamline creative tasks.
The multimedia section includes Audio draft to proactively clean background noise, and tools like call transcript e Interpreter to convert voice to text and facilitate translations when writing. In photography, Portrait Studio can generate artistic compositions, even of pets, from existing images.
Foldables get a special treat: Gemini Live arrives at FlexWindow of the Galaxy Z Flip for voice searches without opening the phone, and there are more customization options with clocks that adapt to the background and new emoji and color combinations.
In security and privacy, One UI 8 incorporates Knox Enhanced Encrypted Protection (KEEP), an architecture that creates encrypted storage spaces per application; improvements in Knox Matrix, capable of logging out of linked devices if it detects risks; and a Secure Wi-Fi with post-quantum cryptography to protect the connection against emerging threats.
There is also progress in the Galaxy ecosystem: Samsung DeX receives usability adjustments, QuickShare improves sharing between devices and Calendar incorporates small tweaks for clearer management of events and reminders.
Supported devices and support cycle
Availability will vary by region, but Samsung confirms a broad rollout starting with its flagships and gradually expanding to the rest of the catalog. For reference, this is the list of confirmed families that will be receiving One UI 8 over the next few weeks and months:
- Galaxy S: S25, S25+, S25 Ultra, S25 Edge; S24, S24+, S24 Ultra, S24 FE; S23, S23+, S23 Ultra, S23 FE; S22, S22+, S22 Ultra; S21 FE.
- Galaxy Z: Z Fold6, Z Flip6, Z Fold5, Z Flip5, Z Fold4, Z Flip4.
- A Galaxy: A73, A56, A55, A54, A36, A35, A34, A33, A26, A25, A24, A17, A16, A16 5G, A15, A15 5G, A06.
- Galaxy Tab: Tab S10+, Tab S10 Ultra, Tab S10 FE, Tab S10 FE+; Tab S9, S9+, S9 Ultra, S9 FE, S9 FE+; Tab S8, S8+, S8 Ultra; Tab S6 Lite; Tab A9 and A9+.
It should be noted that Not all models will receive all features: The most demanding AI improvements will be activated on the latest and most powerful devices, while older models will receive improvements focused on stability, security, and usability tweaks.
In terms of support, The Galaxy S22 series completes its major updates with One UI 8, while the Galaxy S23 will still receive a later version (One UI 9 based on Android 17). Starting with S24, Samsung maintains its commitment to seven years of updates, which projects support up to One UI 13.
If you still don't see the update, don't despair: the release depends on factors such as operator, country and model. Check the system update menu regularly and make sure you have sufficient battery power and a stable Wi-Fi network before starting the download.
With a deployment that starts on the S25 and will progressively extend to the rest of the Galaxy ecosystem, One UI 8 represents a pragmatic leap: Less noise in the design, more focus on stability, security, and useful AI features, plus targeted improvements in productivity and experiences for large and foldable screens.
