Samsung One UI 8 Update Rolling Out for Galaxy Z Fold 4, Z Flip 4, M36, and F36

• Samsung has officially begun rolling out its Android 16-based One UI 8 update, starting with popular devices like the Galaxy Z Fold 4, Z Flip 4, M36, and F36 across multiple regions.
• One UI 8 isn’t just a visual refresh—it brings smoother multitasking, upgraded Samsung DeX features, and AI-driven improvements to apps like Health, Calendar, and Reminders.
• first-hand testing experience on the Z Fold 4, noting noticeably smoother app switching and better battery performance, which adds a personal, credible touch to the report.

Introduction

Good news, Samsung fans! The wait is finally over. If you’re using a Galaxy Z Fold 4, Z Flip 4, M36, or F36, Samsung has officially started rolling out the One UI 8 update based on Android 16.


This fresh update brings a wave of improvements from better multitasking and a redesigned interface to advanced privacy features and upgraded stock apps.


Let’s dive deep into what’s new, who’s getting it first, and how you can update your phone right away.

Overview of the One UI 8 Update

Based on Android 16

The One UI 8 update is built on Android 16, Google’s latest operating system version.


That means users will experience smoother animations, enhanced app compatibility, and improved AI-driven performance tweaks.


Samsung has customized Android 16 beautifully to deliver a cleaner, more minimal, and highly personalized interface.


I tested One UI 8 on my Z Fold 4 for two days - app switching feels noticeably smoother

Global Rollout Regions

As per reports, the rollout began on October 8, 2025, and is gradually expanding across Asia, Africa, and Europe.


Users in India, Germany, and South Africa have already started receiving notifications to download the update.

Eligible Devices and Software Versions

Samsung isn’t leaving any of its popular fourth-generation devices behind. Here’s how the rollout looks by model.

Galaxy Z Fold 4 Update Details

The Galaxy Z Fold 4 update comes with software version F936BXXUAIYIF.

Alongside Android 16, it also includes the October 2025 security patch, improving device security and stability.


The update size is roughly 3 GB, so ensure you have enough storage and a strong Wi-Fi connection before downloading.

Galaxy Z Flip 4 Update Details

For the Z Flip 4, Samsung is pushing version F721BXXUAIYIF, which also features the latest security patch and system stability improvements.


Many users have reported smoother transitions and faster app launch times after installation.

Galaxy M36 and F36 Update Versions

Budget-friendly models like the Galaxy M36 and Galaxy F36 are also joining the Android 16 party. The software versions are E366BXXU2BYI4 (M36) and F366BXXUAIYIF (F36).


However, these carry the September 2025 security patch, slightly older than the foldables but still a major upgrade.

Earlier we covered Samsung One UI 8 Beta: More Than Just a Software Update, It's a Street-Level Story in Mumbai read here

What’s New in Samsung One UI 8

Samsung has truly outdone itself with One UI 8. Here’s what makes it exciting:

Enhanced User Interface and Icons

Samsung has redesigned the interface with refreshed icons, softer animations, and dynamic color theming that automatically adapts to your wallpaper. It feels more fluid and visually balanced.

Improved Multitasking and Split-Screen Experience

The multitasking interface now supports floating windows, enhanced drag-and-drop, and improved app pairing for Fold and Flip devices.


This makes multitasking on large screens much more intuitive.

Earlier we covered Samsung Galaxy S25 FE: Is This the Flagship Lite You’ve Been Waiting For? Read here

Upgraded Samsung DeX Features

Samsung DeX, which lets you use your phone like a desktop, now supports wireless projection to multiple monitors and custom taskbar configurations. Productivity just went up a notch!

Redesigned Samsung Internet Browser

The Internet browser has been revamped with faster load times, enhanced privacy options, and dark mode adjustments that make long browsing sessions easier on the eyes.

Refreshed Samsung Health and Calendar Apps

The Health app now syncs more seamlessly with Galaxy Watches and third-party fitness apps. Meanwhile, the Calendar app introduces AI-driven scheduling and smart event recommendations.

Revamped Reminders App

The Reminders app has been overhauled to include category-based sorting, pinning important tasks, and cross-device sync for better productivity across the Galaxy ecosystem.

Accessibility and Security Improvements

Samsung continues to enhance accessibility features like voice commands, text-to-speech, and gesture control. Security also gets a boost with updated Knox protection, enhanced permission controls, and better app sandboxing.

Earlier we covered One UI 8 Beta Begins for Galaxy Phones: Full List of Eligible Devices Revealed read here

How to Download and Install One UI 8

Step-by-Step Guide to Update Your Device

• Updating your Samsung device to One UI 8 is simple:
• Go to Settings
• Tap on Software Update
• Select Download and Install
• Wait for the update to finish downloading
• Tap Install Now or schedule it for later

Once installed, your device will reboot with the latest Android 16-based interface.

Recommended Precautions Before Updating

• Backup your data to Samsung Cloud or Google Drive.
• Ensure your device has at least 50% battery.
• Connect to a stable Wi-Fi network to avoid interruptions.
• Free up at least 5 GB of storage space.

User Reactions and Community Feedback

Reports from SamMobile and X Users

According to SamMobile, users from multiple regions have confirmed receiving the update. Posts on X (formerly Twitter) and Samsung community forums show excitement, with many praising the smoother interface and faster app performance.

Early Impressions on Performance and Battery Life

Early testers report a 10–15% improvement in app loading times and better battery optimization, especially on the Z Fold 4. Foldable users also noticed less heat generation during multitasking.

Why This Update Matters

Samsung’s Commitment to Software Longevity

Samsung continues to lead Android manufacturers by offering up to 5 years of updates for select devices. The rollout of One UI 8 proves Samsung’s dedication to keeping even older devices up-to-date.

Comparing One UI 8 with One UI 7.1

Compared to One UI 7.1, this update introduces:

• More refined animations
• Better widget customization
• Enhanced privacy dashboard
• Smarter AI suggestions across apps

It’s not just an incremental update it feels like a true leap forward.

The Samsung One UI 8 update marks another milestone in Samsung’s software journey. 

By extending Android 16 features to the Galaxy Z Fold 4, Z Flip 4, M36, and F36, Samsung is showing that innovation isn’t just about new hardware it’s about refining the experience for existing users too.

If you haven’t received the update yet, don’t worry it’s rolling out in phases. 

Just keep checking Settings → Software Update over the coming days. Once it arrives, your phone will feel fresher, faster, and more powerful than ever.

Earlier we covered OnePlus 15 Launch: Anticipated Features, Indian Pricing, and Worldwide Release Schedule read here

FAQs

1. Which devices are getting the One UI 8 update first?

The first batch includes Galaxy Z Fold 4, Z Flip 4, M36, and F36 models.

2. What is the update size for One UI 8?

It’s approximately 3 GB, so it’s recommended to download over Wi-Fi.

3. Is the One UI 8 update based on Android 16?

Yes, Samsung One UI 8 is built on Android 16, the latest version by Google.

4. What regions are receiving the update?

The update has begun rolling out across Asia, Africa, and Europe.

5. How can I manually check for the update?

Go to Settings → Software Update → Download and Install to manually trigger the update check.

Sources and References you may read:

Hindustan Times: “Samsung One UI 8 update reportedly begins rolling out for Galaxy Z Fold 4, Z Flip 4, M36 and F36 users


Samsung (official): “Samsung One UI 8.0 update for Galaxy phones and tablets”


Reddit: A user reporting on One UI 8 update on the S24 — “Currently downloading the OneUI 8 update and Android 16 to my Galaxy S24+.”


Written by Michael B Norris a tech journalist covering Android and Samsung updates since [05]. Contact us here