Table of contents Quick comparison: Samsung One UI 8 vs 8.5 vs 9 One UI 8 One UI 8.5 One UI 9 What this means for your Galaxy Samsung has released three versions of One UI in about 10 months. If you own a Galaxy phone and are trying to make sense of what changed, what update your phone currently has, and what is coming next, this guide breaks it all down. One UI 8 started rolling out in September 2025 and is now installed on hundreds of millions of Galaxy devices. One UI 8.5 first arrived on the Galaxy S26 series earlier in 2026 and began rolling out to older Galaxy phones on May 6, 2026. It is the biggest visual and AI upgrade Samsung has shipped in years. One UI 9 is still in beta as of May 2026. Here is how all three compare. Quick comparison: Samsung One UI 8 vs 8.5 vs 9 Use the table below to see the key differences at a glance, then scroll down for the full breakdown of each version. One UI 8 When it launched One UI 8 is built on Android 16. The Galaxy Z Fold7 and Galaxy Z Flip7 were the first devices to ship with it, announced at Galaxy Unpacked in Brooklyn, New York, on July 9, 2025, and on sale from July 25. Samsung then began the broader rollout to existing Galaxy devices on September 15, 2025. The global rollout kicked off three days later on September 18, 2025, covering markets including the US, UK, Germany, and India. The A56 and A36 received the update in Kenya and Nigeria from September 29 to 30, 2025. What phones have One UI 8 As of May 23, 2026, the One UI 8 rollout is essentially complete. Every eligible Samsung Galaxy phone has received it. The full list of supported devices includes: Galaxy S series Galaxy S25, S25+, S25 Ultra, S25 Edge, S25 FE Galaxy S24, S24+, S24 Ultra, S24 FE Galaxy S23, S23+, S23 Ultra, S23 FE Galaxy S22, S22+, S22 Ultra Galaxy S21 FE Galaxy Z series (foldables) Z Fold7, Z Flip7, Z Flip7 FE Z Fold6, Z Flip6 Z Fold5, Z Flip5 Z Fold4, Z Flip4 (this is their final major OS update) The Galaxy A series (key models for the Nigerian market) A73 5G, A56 5G, A55 5G, A54 5G, A53 5G A36 5G, A35 5G, A34 5G, A33 5G A26 5G, A25 5G, A17 5G, A17, A16 5G, A16, A15 5G A07, A06 5G, A06 Galaxy Tab series Tab S11, Tab S11 Ultra Tab S10+, Tab S10 Ultra, Tab S10 FE, Tab S10 FE+, Tab S10 Lite Tab S9, S9+, S9 Ultra, S9 FE, S9 FE+ Tab S8, S8+, S8 Ultra Tab S6 Lite (2024), Tab A9, A9+, A11, A11+ Galaxy M / F / XCover series M56, M55, M54, M34, M16 F56, F55, F34, F16 XCover6 Pro, XCover7, XCover7 Pro, Tab Active5 Pro What One UI 8 added One UI 8 was a refinement update rather than a full visual overhaul. The biggest additions included: Now Brief and Now Bar upgrades: personalised daily updates covering traffic, reminders, and Galaxy Watch health stats. Now Bar has also gained support for more third-party apps and appeared on the Z Flip’s cover screen. Galaxy AI for large screens: drag-and-drop of AI-generated content into Multi Window, plus Drawing Assist and Writing Assist on foldables and tablets. Gemini Live on FlexWindow: voice-driven Gemini access directly from the Z Flip’s cover screen. Audio Eraser expanded: single-tap noise removal is now available in video apps, Voice Recorder, and Samsung Notes. Portrait Studio for pets: AI-generated studio photos for dogs, cats, and birds. Adaptive lock-screen clock: a new clock that wraps around faces in the wallpaper, with adjustable size and colour. Call Captions and Interpreter: live captions for noisy environments and a typing-based translation tool. Knox KEEP security and Post-Quantum Cryptography on Secure Wi-Fi. One UI 8.5 When it launched One UI 8.5 is built on Android 16 QPR2, which is a quarterly update to Android 16 rather than a brand-new Android version. Despite sharing the same Android base as One UI 8, this version carries the biggest visible changes Samsung has shipped in years. It first launched on February 25, 2026, at Galaxy Unpacked in San Francisco, where Samsung announced the Galaxy S26, S26+, and S26 Ultra. All three phones came with One UI 8.5 pre-installed. They went on sale on March 11, 2026. Samsung began the stable rollout for older devices in South Korea on May 6, 2026. The global wave followed on May 11, covering Europe, India, North America, Latin America, Southeast Asia, and more. A wider expansion to the A-series and older flagships continued from May 18 to 22. What phones have One UI 8.5 As of May 23, 2026, here is where the rollout stands: Already received the stable update Galaxy S26, S26+, S26 Ultra (pre-installed at launch, March 11, 2026) Galaxy S25, S25+, S25 Ultra, S25 Edge, S25 FE Galaxy S24, S24+, S24 Ultra, S24 FE Galaxy S23, S23+, S23 Ultra, S23 FE Galaxy Z Fold7, Z Flip7, Z Flip7 FE, Galaxy Z TriFold Galaxy Z Fold6, Z Flip6 Galaxy Z Fold5, Z Flip5 Galaxy Tab S11, Tab S11 Ultra, Tab S10 FE, Tab S10 FE+ Galaxy A56 5G and Galaxy A36 5G Confirmed eligible and rolling out soon Galaxy S22, S22+, S22 Ultra (rollout confirmed from May 26, 2026; this is their final major update) Tab S10+, Tab S10 Ultra, Tab S10 Lite, Tab S9 series, Tab S8 series Galaxy A57, A55, A54, A53, A37, A35, A34, A26, A25, A24, A17, A16, A15, A07, A06 Galaxy M56, M55, M54, M34, M16; Galaxy F-series Galaxy XCover 6 Pro, XCover 7, XCover 7 Pro, Tab Active5/5 Pro Not eligible Galaxy S21 series (non-FE), Galaxy Note 20 series Galaxy A devices older than 2023 What One UI 8.5 added One UI 8.5 is the update that makes your Galaxy look and feel meaningfully different. The changes
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