Samsung One UI Versions Explained

What is One UI?

One UI is Samsung's custom user interface built on top of Android. It includes Samsung's system applications, interface design language, and features that are unique to Galaxy devices. Every Samsung Galaxy smartphone, tablet, and wearable runs One UI (or One UI Watch on wearables).

One UI is not a separate operating system — it is a layer on top of Android. The underlying Android version provides the platform foundation, while One UI provides the user experience, apps, and Samsung-specific features.

How One UI versions are numbered

Samsung uses a simple version numbering scheme for One UI: One UI X.Y where X is the major version and Y is the minor version. Major One UI versions are released alongside major Android updates — typically one per year. Minor versions may be released within a year as part of firmware updates.

Each major One UI version is paired with a specific Android version. For example, One UI 8.5 is paired with a specific Android release. See our One UI versions page for the full version history and device compatibility.

What each major One UI version brings

Each major One UI version introduces:

• Interface design changes: Updated visual design, animations, and layout.
• New features: Samsung-specific features and apps not available in stock Android.
• Improvements to existing features: Enhancements to Samsung apps like the camera, gallery, and settings.
• Foldable support: For Galaxy Z foldables, new foldable-specific interface features.
• Galaxy AI: Recent One UI versions include AI-powered features under the Galaxy AI banner.

The specific features added in each version depend on Samsung's product roadmap for that release cycle.

How One UI relates to Android updates

When Samsung releases a major Android update for a Galaxy device, it is always paired with a new One UI version. The two are delivered together as a single firmware package. This means:

• You cannot update One UI without also updating Android (and vice versa for major updates).
• The One UI version and Android version on your device are linked.
• When you check your device's software information, you will see both the Android version and the One UI version.

See our Android updates guide for more on how Android updates work on Galaxy devices.

Which devices get One UI updates

One UI update eligibility depends on Samsung's update policy for each device:

• Galaxy S series: Recent models receive the most One UI updates — up to seven years of major updates.
• Galaxy Z series: Foldables follow a similar update schedule to the Galaxy S series.
• Galaxy A series: Mid-range devices typically receive three to four years of major One UI updates.
• Galaxy M and F series: Budget devices receive fewer major updates.
• Galaxy Tab: Tablet update eligibility varies by model.

Check your device page for its latest known One UI version and update eligibility.

One UI version history

Samsung has released multiple major One UI versions since its introduction. Each version builds on the previous one, adding new features and refinements. See our One UI versions page for a complete list of versions, their release dates, Android base versions, and supported devices.

One UI and Galaxy AI

Recent One UI versions include Galaxy AI — Samsung's suite of AI-powered features. These include on-device AI for text processing, image editing, translation, and other intelligent features. Galaxy AI features are being expanded to more devices with each One UI release, though some features require specific hardware capabilities.

SamsungFirmware.com and One UI

Our One UI versions page tracks each One UI release with its version number, release date, Android base, and status. Our firmware ledger includes the One UI version for each firmware release, so you can see which One UI version each firmware update brings.