One UI
Your Galaxy.
Your way.
The new One UI 9 delivers an easier, more seamless mobile experience so you can feel comfortable handling any form factor. Along with an enhanced AI that's richer, more personal and more helpful, interacting with your Galaxy device has never felt more effortless.1
Now Nudge
Now Nudge.
Takes you there right away
If your schedule is packed tight, you don't have the bandwidth to think about next moves. Now Nudge provides helpful prompts ready to take you to your next action, keeping things moving without pulling you out of the moment. Seamlessly jump between tasks without losing track of what you were doing, like viewing your Calendar or adding schedules and saving locations to maps, all without a single manual app switch.2
New Shape
Adjusts smoothly to what you're viewing
Our all new-foldable design seamlessly adapts to how you watch and enjoy content. With optimised aspect ratios on both screens, you can go from short-form to long-form content with ease. You can also rotate between portrait and landscape modes to match what you're viewing on the wide main screen, whether it's watching videos or reading articles. Everything just feels better when you do it on Galaxy Z Fold8.
FlexWindow
FlexWindow. Now even more flexible
One UI 9 allows you to get things done as easily on FlexWindow as the main screen. Swipe up from the bottom to access a streamlined apps tray, or swipe down from the top to access your notifications or Quick Panel. You can also move, add or delete various widgets directly on the cover screen for instant customisation.6
Privacy & Security
Privacy by default. Protected by Knox
We’re committed to protecting your information, while providing transparency about how it’s used and shared.
On-device protection
Our Personal Data Engine gathers and processes your personal data safely. Then it encrypts that data and saves it onto your device with KEEP and Knox Vault, making it harder for anyone else to gain access.10,11
Tailored Controls
Take control over your Galaxy AI. You decide where it gets processed, either on-device or in the cloud.
Connected Security
Knox Matrix Trust Chain technology provides security across Galaxy connected devices so you can monitor the security of other devices right from your Galaxy smartphone.
Frequently Asked Questions
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What's new in One UI 9?One UI 9 from Samsung brings several new features and improvements to Galaxy devices, providing a more seamless and intuitive user experience, along with an enhanced Galaxy AI for truly understanding and assisting users. One UI 9 will first be introduced on Galaxy Z Fold8 Ultra, Galaxy Z Fold8 and Galaxy Z Flip8, then be gradually rolled out to other Galaxy devices.
• Enhanced UX experience: One UI 9 brings various UX and design improvements that enhance the Galaxy experience, including optimised layouts and screens. The updates provide smoother, easier interactions with your Galaxy, letting you get more done while doing less.
• Galaxy AI features: One UI 9 has updated various Galaxy AI features that are designed to be useful in various aspects of daily life, such as Now Nudge, My FanCam, Photo Assist and Now Brief. These features are richer and more personalised, and they work more smoothly.
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What is One UI?One UI is Samsung's innovative software, designed to provide an intuitive and connected user experience on your Galaxy devices. It's basically the Samsung UI for smartphones, smartwatches, tablets and more. The latest version is One UI 9, which has been specifically optimised to provide a more seamless experience on Galaxy foldables.
• One UI 9 has been updated for Galaxy foldable devices, ensuring an optimised interface for each form factor —including the new Galaxy Z Fold8. So whatever Galaxy foldable you have, you can be confident of a high-quality user experience with seamless interactions.
• In particular, you can get more done from the cover screen of Galaxy Z Flip8. One UI 9 provides a refined UX tailored for small cover displays with a more consistent structural design, along with additional features and core app functionality that you can access directly from your FlexWindow without having to open your phone.
• One UI 9 also supports two-way and three-way split views that allow you to freely shift between windows with just a tap.
• Another change for One UI 9 is an enhanced DeX Mode experience when it comes to window snaps. Now you can arrange windows by snapping them top and bottom in addition to left and right. -
Which Galaxy devices are compatible with One UI 9?One UI 9 will first be introduced with Galaxy Z Fold8 Ultra, Galaxy Z Fold8 and Galaxy Z Flip8, the latest generation of Samsung's Galaxy foldable smartphones. The One UI 9 update will expand to more Galaxy devices as the rollout continues.
Note: The availability of AI features may vary depending on the device model.
You can download the Samsung Members app to check which devices are compatible with One UI 9.
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How do I know when One UI updates will be released?You can download the Samsung Members app to check the release date for One UI updates, such as the One UI 9 release date.
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How do I install the latest One UI update?To install the latest One UI update on your Galaxy device, go to Settings > Software update > Download and install, then tap 'Check for updates’.
If there is an update available, you will be guided through the latest One UI download and installation on your Galaxy device. If you already have the latest version of One UI installed, you will see a message that your software is up to date.
Note: Update is only available for supported devices with the latest version of One UI. -
What can I customise on Galaxy smartphones with One UI 9?One UI 9 makes it easier than ever to customise the FlexWindow of your Galaxy Z Flip8 phone with better editing options. If you're someone who loves personalizing their Galaxy Z Flip8, you'll enjoy what the latest One UI customisation updates have to offer.
• More customizable Quick Panel: There are more options to rearrange and customise the controls in your Quick Panel, such as changing the size of the brightness and volume sliders and the media player, and separating the sound button from the volume slider. You can also separate the icon itself from the volume and brightness slider.
• Advanced FlexWindow editing: You can now directly edit the apps screen, widgets and Quick Panel on your FlexWindow without having to unfold your phone. For example, you can move, add or delete widgets directly on the cover screen for instant customisation.
• New information widgets for FlexWindow pre-sets: For Galaxy Z Flip8, there are two new information-type widgets that can be added to the FlexWindow lock screen pre-sets — Health and Reminder.
• Horizontally extendable FlexWindow wallpaper: You can expand your FlexWindow wallpaper horizontally, and the clock will automatically reposition to maintain an optimised screen layout. -
What are the main Galaxy AI features available in One UI 9?One UI 9 has improved several Galaxy AI features designed to streamline your day, making your Galaxy device a better personal AI assistant. In particular, the latest One UI updates make Galaxy AI features richer, more helpful and more optimised.
• Now Nudge: Provides helpful suggestions in real time using on-screen recognition and personalised data. With the latest One UI 9 update, Now Nudge provides smarter, richer suggestions on the keyboard and across different apps.
• My FanCam: Easily reframe your shots in the Gallery video editing feature after you have recorded a video. The feature automatically centers the video on a specific person, creating a subject-focused clip. This makes it easier to share without having to manually crop or adjust the frame.
• Photo Assist: Along with written prompts, there's a simple way to get fast photo editing in Photo Assist. You can simply describe the edit you want to make by speaking, and Photo Assist will do it for you.
• Now Brief: Delivers short, informative briefings that let you stay on top of your day at a glance. The latest One UI 9 update gives Now Brief more optimised layouts with richer personalisation.
Note: The availability of AI features may vary depending on the device model, language or region. Additional AI features are available in One UI 9 beyond the ones listed above.
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How do I access Galaxy AI features on my Samsung device?Galaxy AI features are easy accessible with just a tap or by taking simple steps. Some Galaxy AI features run in the background and jump in to help when it's needed — like a personal AI assistant — while other Galaxy AI features have to be activated by tapping on the four-star icon that appears in certain apps and screens.
• Now Nudge: After enabling it in the Settings menu, Now Nudge will be ready to help you the moment it detects you need it, such as by showing up in the Messenger app during a relevant conversation.
• My FanCam: Open the Gallery app on the device and select the video you want to edit. Tap the Galaxy AI icon. Then when the selectable people are displayed, select the desired person.
• Photo Assist: Open the Gallery app on the device and select the photo you want to edit. Then tap the Galaxy AI icon.
Note: The availability of AI features may vary depending on the device model, language or region. -
What languages does Galaxy AI support?As of July 2026, Galaxy AI's Now Nudge supports 16 languages and Photo Assist supports 41 languages. Full list of languages is below.
• Now Nudge supported languages: Korean, English, French, Spanish, Italian, German, Polish, Portuguese, Japanese, Chinese (Simplified), Thai, Vietnamese, Hindi, Arabic, Indonesian and Russian.
• Photo Assist supported languages: Korean, Arabic, Bengali, Bulgarian, Simplified Chinese, Traditional Chinese, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Latvian, Lithuanian, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Swahili, Swedish, Thai, Turkish, Ukrainian, Vietnamese, Filipino and Gujarati. -
What is PDE (Personal Data Engine), and how does it protect my personal data on my Galaxy device?PDE (Personal Data Engine) is a security engine on Galaxy devices for safe on-device processing of your personal data, such as the personal data used by Galaxy AI features. You can enjoy peace of mind knowing that your information is processed securely through Samsung's powerful security technology, updated for the era of AI.
PDE also uses KEEP (Knox Enhanced Encrypted Protection) to store sensitive data in a secure, encrypted storage area, protecting your personal info from unauthorised access. PDE also keeps your data safe by minimizing data sharing while providing helpful AI experiences. -
What solutions does Samsung offer for privacy and security on Galaxy devices?Samsung offers multiple layers of hardware and software security to ensure your privacy on Galaxy devices, such as PDE for on-device data processing and KEEP for data storage. In particular, Knox Vault is a hardware-based security solution that safeguards your device from software and hardware attacks by protecting sensitive data, including PINs, passwords and biometric data, in an isolated, secure environment.
• Software attacks protected by Knox Vault: Unauthorised attempts to access and steal data by exploiting software vulnerabilities on a device.
• Hardware attacks protected by Knox Vault: Attempts to obtain data through physical access, such as device disassembly, exposure to extreme high or low temperatures, voltage glitching or side-channel attacks. -
How does One UI 9 protect my data by restricting unlock attempts?To protect your personal data, Galaxy mobile devices restrict user input for a certain period of time after a certain number of unlock attempts. This is to prevent brute-force attacks that attempt to guess your password by sequentially trying all possible values. If the allowed number of attempts is exceeded, your device will be permanently locked, which can only be released by a factory reset.
The input restriction time per number of failures is as follows: 5 failed attempts for a 1-minute restriction, 6 failed attempts for a 5-minute restriction, 7 failed attempts for a 15-minute restriction, 8 failed attempts for a 30-minute restriction, 9 failed attempts for a 90-minute restriction, 10 failed attempts for a 4-hour restriction, 11 failed attempts for a 12-hour restriction, 12 failed attempts for a 24-hour restriction.
After 13 failed attempts, your Galaxy mobile device will be permanently locked and can only be released by a factory reset. -
What's so great about the new form factor for Galaxy Z Fold8?Galaxy Z Fold8 offers a unique foldable design optimised for content viewing, making it suitable for users who get joy from various types of content.
• Designed with an all-new shape, the cover screen perfectly matches everyday social content.
• Unfolded, its wide landscape shape and ratio are perfect for getting immersed in premium videos and e-books.
• At just 201 grams in weight, Galaxy Z Fold8 is our lightest Fold yet -
What's so great about side-by-side apps and multi-windows in Galaxy Z Fold8 Ultra?Galaxy Z Fold8 Ultra features an expansive main screen, where you can run multiple apps side-by-side for a boost in productivity, with supporting two-way and three-way split views that allow you to freely shift between windows with just a tap.
• You can have multiple apps open side-by-side on the expansive main screen to get several things done at once.
• The multi-window view helps you experience two full smartphone screens at once side-by-side, giving you more space to get things done.
• In this split view, you don’t need to switch windows so you can complete tasks seamlessly and get deeper into the details when you need to.
• All of this makes Galaxy Z Fold8 Ultra best suited for power users with busy schedules who need to keep on top of their workload.
• Available functions and/or contents may vary depending on the device model, country/region and carrier.
• Image simulated for illustrative purposes. Sequences shortened and simulated. Actual UI may be different.
• Samsung Account login may be required to use certain AI features.
• Samsung does not make any promises, assurances or guarantees as to the accuracy, completeness or reliability of the output provided by AI features.
• Available features and content, including Galaxy AI features, may vary by country/region, device model, OS/One UI version and carrier.
• Galaxy AI basic features provided by Samsung are free. Future releases may include enhanced features or new services that are offered on a paid basis. Different terms may apply for AI features provided by third parties. Galaxy AI basic features are those services listed under "Advanced intelligence" in the current Samsung Services Terms and Conditions.
• Galaxy AI service may be limited for minors in certain regions with age restrictions over AI usage.
• Products are sold separately.
• Availability of colors, sizes, models, and watch bands may vary by country or carrier.
• Some functional widgets may require a network connection and/or Samsung Account login. Availability of functions supported within the apps may vary by country.
• Features are subject to change.
• A network connection may be required to use certain features.
• Galaxy AI service availability may vary by language. Certain languages may require language pack download.
• The descriptions of new features are based on improvements made in the current version compared to previous versions.
1. The official One UI 9 has been first rolled out to Galaxy Z Fold8 Ultra, Galaxy Z Fold8 and Galaxy Z Flip8. The update is expected to gradually roll out to other Galaxy devices.
2. Now Nudge feature requires a Samsung Account login. Available functions and features may vary by country, region and language. Text message prompts available with certain third party messaging apps including Samsung Messages, Google Messages, Google Chat. Split view supported apps may vary. Share photos in Now Nudge works by Analysing available image content. Accuracy of results is not guaranteed.
3. My FanCam feature requires a Samsung Account login. Availability may vary by video. Not supported if there is no subject to track. Accuracy of results is not guaranteed.
4. Photo Assist may require a network connection and Samsung Account login. Service availability may vary by country, language or device model. Photo Assist may result in a resized photo. A visible watermark is overlaid on the image output upon saving in order to indicate that the image is generated by AI. The accuracy and reliability of the generated output is not guaranteed.
5. Now Brief feature requires Samsung Account login. Available functions and features may vary by country, region, language, device model and apps. Some features may require a network connection. customised briefing content provided is based only on the personal information to which the user has consented. Accuracy of generated results is not guaranteed.
6. Compared to previous models.
7. AI Assistant Activity provides visibility into eligible assistant activities. Availability of agents and activities may vary by market, model, and OS version.
8. AI privacy alerts may not account for all relevant factors.
9. Malicious Web detection may not guarantee correct detection at all times.
10. The Personal Data Engine functions under the condition that the Personal Data Intelligence menu is on. Analysed data will be deleted once the Personal Data Intelligence menu is turned off. Personal Data Engine recognises select languages and certain accents/dialects, including but not limited to Arabic, (Simplified) Chinese, Dutch, English, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Romanian, Russian, Spanish, Swedish, Thai, Turkish, and Vietnamese. Personal Data Engine currently analyzes Samsung native applications and supported app notifications.
11. KEEP is available on Galaxy smartphones and tablets with One UI 8 or later.