Galaxy S25 One UI 8 Update Now Rolling Out Globally

Samsung has begun the global rollout of the stable One UI 8 update for its Galaxy S25 series. The update is based on Android 16 and started in South Korea earlier this week. It is now expanding to more regions, reaching users in Europe, India, Canada, the UK, Romania, and the Middle East.

The new firmware, version YI3, is a major release. It comes with the September 2025 security patch and has a size of around 3.7GB. The update is not yet live in the US, but Samsung has confirmed that availability will expand there within days.

Galaxy S25 One UI 8 Update Brings New Features

One UI 8 introduces multiple improvements for Galaxy S25 users. The Now Bar has been enhanced with better support for third-party apps. Portrait Studio has been added for more creative photo editing. Call Captions and Interpreter Mode bring new accessibility and translation options.

The update also improves features on other Samsung devices. For example, Z Flip models get a better FlexWindow experience, with Gemini Live now available on the cover screen. According to Samsung’s official rollout schedule, Galaxy S24, Z Fold 6, Flip 6, S24 FE, and older flagships will receive the stable Android 16 update later this year.

This release shows Samsung’s strong update strategy. It makes Samsung the first major Android brand outside Google to deliver Android 16 in a stable version.

When Will Other Galaxy Devices Get One UI 8?

Samsung confirmed that its previous flagships will start getting the update from October. This includes Galaxy S24, Galaxy S23, Galaxy S22, Z Fold 6, and Flip 6 models. Many of these devices are already running beta versions of One UI 8 in selected regions.

The company is expected to follow a staged rollout. Carrier-locked models may take longer because of extra testing and certification. Users can manually check for updates by going to Settings > Software update > Download and install.

The global rollout also strengthens Samsung’s reputation for fast Android version updates. Only Google Pixel devices usually get faster access.

The Galaxy S25 One UI 8 update marks a major milestone for Samsung’s software support. It adds powerful new features, boosts security, and confirms Samsung’s leading role in Android updates.

FYI (keeping you in the loop)-

Q1: What is the size of the Galaxy S25 One UI 8 update?

The update is about 3.7GB in size. It also includes the September 2025 security patch.

Q2: Is the Galaxy S25 One UI 8 update available in the US?

Not yet. It has started in Europe, India, Canada, the UK, Romania, and the Middle East. The US release is expected within days.

Q3: Which new features does One UI 8 bring?

It brings Portrait Studio, Call Captions, Interpreter Mode, and Now Bar improvements. Z Flip models also get a better FlexWindow with Gemini Live.

Q4: When will older Galaxy devices get One UI 8?

Samsung says Galaxy S24, S23, S22, and Z Fold/Flip 6 devices will get the update starting in October 2025.

Q5: How can I check for the update on my Galaxy S25?

Go to Settings > Software update > Download and install. Carrier-locked phones may have to wait longer.