One UI is a user interface from Samsung built on the Android operating system. It is used by Samsung phones Galaxy, tablets Galaxy Tab, smart watch Galaxy Watch and other Samsung ecosystem devices. One UI determines the system's appearance, controls, features, updates, customization options, and connections to Samsung services such as Galaxy AI, Samsung DeX, Samsung Health, Samsung Wallet, SmartThings or Samsung Knox.
The most important articles about One UI 8.5
- Will your Samsung get Android 17 and One UI 9? Here is a list of supported models
- You have installed One UI 8.5? Users report drastic drop in battery life
- One UI 8.5 brings a small but useful feature for users who like to snooze their alarms
What is One UI
One UI is Samsung's superstructure for Android.
Samsung uses it as the main system environment on its phones Galaxy, tablets Galaxy Tab and other devices.
One UI adds Samsung's own features to Android, a modified look, advanced multitasking capabilities, security Knox, support Galaxy AI and better connectivity between Samsung devices.
When did Samsung introduce One UI?
Samsung introduced One UI in 2018 as the successor to the Samsung Experience environment.
- 2018 – performance One UI,
- 2019 – One UI 2,
- 2020 – One UI 3,
- 2021 – One UI 4,
- 2022 – One UI 5,
- 2023 – One UI 6,
- 2024 – One UI 6.1 s Galaxy AI,
- 2025 – One UI 7,
- 2026 – One UI 8 to One UI 8.5.
Why is One UI important
One UI is one of the main reasons why Samsung phones are Galaxy so popular.
It offers:
- clear control,
- long-term updates,
- Galaxy AI,
- Samsung DeX,
- GoodLock,
- advanced customization,
- Samsung Knox,
- better multitasking,
- connection with Galaxy Watch, Galaxy Buds a Galaxy Tab.
Newest version One UI
The most important current versions include:
- One UI 8.5
- One UI 8,
- One UI 7,
- One UI 6.1
- One UI 6,
- One UI 5.1
- One UI 5,
- One UI 4.1
- One UI 4.
One UI 8.5
One UI 8.5 is a modern version of the Samsung environment built on the foundations of Android 16 and One UI 8. It focuses primarily on improved Galaxy AI, security, privacy, communication, sharing and smoother everyday use.
Date of publication One UI 8.5
Samsung has officially launched the deployment One UI 8.5 in the year 2026.
The update has started initially in select markets and is gradually expanding to other models and regions.
News One UI 8.5
Among the main news One UI 8.5 includes:
- improved Galaxy AI,
- better privacy protection,
- more advanced security,
- smarter content sharing,
- improved photo editing,
- better communication work,
- system optimization,
- higher animation smoothness.
Galaxy AI v One UI 8.5
One UI 8.5 expands possibilities Galaxy AI.
Features may include:
- smarter photo editing,
- better answer suggestions,
- more advanced work with text,
- summary of content,
- faster search,
- improved AI assistants.
Supported devices One UI 8.5
One UI 8.5 is mainly intended for newer Samsung models Galaxy.
Supported or expected supported devices include:
- Samsung Galaxy S26 Ultra
- Samsung Galaxy S26+
- Samsung Galaxy S26
- Samsung Galaxy S25 Ultra
- Samsung Galaxy S25+
- Samsung Galaxy S25
- Samsung Galaxy S25 FE
- Samsung Galaxy S24 Ultra
- Samsung Galaxy S24+
- Samsung Galaxy S24
- Samsung Galaxy S24 FE
- Samsung Galaxy Z Fold7
- Samsung Galaxy Z Flip7
- Samsung Galaxy Z Fold6
- Samsung Galaxy Z Flip6
- Samsung Galaxy Tab S11 Ultra
- Samsung Galaxy Tab S11
- Samsung Galaxy Tab S10 Ultra
- Samsung Galaxy Tab S10 +
Availability may vary by market, carrier and specific variadevices.
Problems One UI 8.5
Temporary issues may occur with major updates.
Most often, users solve:
- higher battery consumption after installation,
- slower system after first startup,
- incompatibility of some applications,
- delayed notifications,
- problems with Bluetooth or Wi-Fi.
Most issues are usually resolved within a few days or with the next security update.
One UI 8
One UI 8 is a major system update from Samsung built on Android 16.
It focuses on speed, stability, Galaxy AI, multitasking, security and better device connectivity Galaxy.
Date of publication One UI 8
One UI 8 began to appear in 2025 and gradually expanded to other Samsung devices Galaxy.
In 2026 It is among the main system versions on newer Samsung phones and tablets.
News One UI 8
One UI 8 brings:
- Android 16,
- improved Galaxy AI,
- better battery management,
- faster animations,
- higher system stability,
- better multitasking,
- improved security,
- better connection with Gemini.
Supported devices One UI 8
The main supported models include:
- Samsung Galaxy S25 Ultra
- Samsung Galaxy S25+
- Samsung Galaxy S25
- Samsung Galaxy S24 Ultra
- Samsung Galaxy S24+
- Samsung Galaxy S24
- Samsung Galaxy S23 Ultra
- Samsung Galaxy S23 +
- Samsung Galaxy S23
- Samsung Galaxy Z Fold6
- Samsung Galaxy Z Flip6
- Samsung Galaxy Z Fold5
- Samsung Galaxy Z Flip5
- Samsung Galaxy Tab S10 Ultra
- Samsung Galaxy Tab S10 +
- Samsung Galaxy Tab S9 Ultra
- Samsung Galaxy Tab S9 +
- Samsung Galaxy Tab S9
Changelog One UI 8
Major changes One UI 8:
- newer Android base,
- better Galaxy AI,
- Samsung app customizations,
- better announcements,
- higher security,
- optimization for foldable phones,
- better regimes and routines.
One UI 7
One UI 7 is one of the biggest visual changes in the history of the Samsung environment.
It is built on Android 15 and brings a new system look, redesigned controls, Now Bar, improved animations and deeper integration Galaxy AI.
Date of publication One UI 7
Samsung has started the official rollout One UI 7 in the year 2025.
The update was deployed gradually by model, market, and operator.
News One UI 7
The main news includes:
- new system design,
- Now Bar,
- redesigned lock screen,
- new widgets,
- improved quick switches,
- better animation,
- extension Galaxy AI,
- better work with notifications.
Now Bar
Now Bar is one of the most important innovations One UI 7.
It displays live information directly on the lock screen.
It can display, for example:
- timer,
- playing music,
- sports activity,
- navigation,
- status of selected applications.
Supported devices One UI 7
One UI 7 is mainly supported by newer models Galaxy.
The main ones include:
- Samsung Galaxy S25 Ultra
- Samsung Galaxy S25+
- Samsung Galaxy S25
- Samsung Galaxy S24 Ultra
- Samsung Galaxy S24+
- Samsung Galaxy S24
- Samsung Galaxy S23 Ultra
- Samsung Galaxy S23 +
- Samsung Galaxy S23
- Samsung Galaxy S23FE
- Samsung Galaxy Z Fold6
- Samsung Galaxy Z Flip6
- Samsung Galaxy Z Fold5
- Samsung Galaxy Z Flip5
- Samsung Galaxy Tab S9 Ultra
- Samsung Galaxy Tab S9 +
- Samsung Galaxy Tab S9
Problems One UI 7
U One UI 7 were most frequently addressed:
- delayed rollout,
- higher battery consumption after the update,
- changes in control,
- application compatibility,
- animation errors,
- unlocking issues on some builds.
One UI 6.1
One UI 6.1 is one of the most important versions One UIbecause it brought Galaxy AI to a wider portfolio Samsung devices Galaxy.
She first appeared with a series Galaxy S24 and subsequently expanded to older models.
Date of publication One UI 6.1
One UI 6.1 was introduced in 2024 along with a number of Galaxy S24.
Later, the update expanded to include a number of Galaxy S23, Galaxy Z Fold5, Galaxy Z Flip5, Galaxy Tab S9 and other devices.
News One UI 6.1
The main news includes:
- Galaxy AI,
- Circle to Search,
- Live Translate,
- Interpreter,
- Chat Assist,
- Note Assist,
- Transcript Assist,
- Photo Assist,
- Generative Edit.
Galaxy AI v One UI 6.1
One UI 6.1 started an era Galaxy AI.
Galaxy AI helps with:
- call translation,
- editing photos,
- summarizing notes,
- transcription of recordings,
- by writing messages,
- by searching on the display.
Supported devices One UI 6.1
One UI 6.1 were obtained, for example:
- Samsung Galaxy S24 Ultra
- Samsung Galaxy S24+
- Samsung Galaxy S24
- Samsung Galaxy S23 Ultra
- Samsung Galaxy S23 +
- Samsung Galaxy S23
- Samsung Galaxy S23FE
- Samsung Galaxy Z Fold5
- Samsung Galaxy Z Flip5
- Samsung Galaxy Z Fold4
- Samsung Galaxy Z Flip4
- Samsung Galaxy Tab S9 Ultra
- Samsung Galaxy Tab S9 +
- Samsung Galaxy Tab S9
- Samsung Galaxy Tab S8 Ultra
- Samsung Galaxy Tab S8 +
- Samsung Galaxy Tab S8
One UI 6
One UI 6 is a version built on Android 14.
It brought a more modern look, new quick switches, better lock screen customization, and system optimizations.
Date of publication One UI 6
One UI 6 began publication in 2023.
It arrived on flagship models first Galaxy S23 and then to other Samsung phones and tablets.
News One UI 6
One UI 6 brought:
- Android 14,
- new quick switch panel,
- better lock screen customization,
- new widgets,
- improved Camera app,
- better gallery,
- higher security.
Supported devices One UI 6
One UI 6 were obtained, for example:
- Samsung Galaxy S23 Ultra
- Samsung Galaxy S23 +
- Samsung Galaxy S23
- Samsung Galaxy S22 Ultra
- Samsung Galaxy S22 +
- Samsung Galaxy S22
- Samsung Galaxy S21 Ultra
- Samsung Galaxy S21+
- Samsung Galaxy S21
- Samsung Galaxy Z Fold5
- Samsung Galaxy Z Flip5
- Samsung Galaxy Z Fold4
- Samsung Galaxy Z Flip4
- Samsung Galaxy A54
- Samsung Galaxy A34
One UI 5.1
One UI 5.1 is a smaller but important update built on Android 13.
She first appeared with a series Galaxy S23.
News One UI 5.1
The main news includes:
- improved Camera app,
- better Gallery,
- new battery widgets,
- better regimes and routines,
- improved multitasking,
- better connectivity between Galaxy devices.
Supported devices One UI 5.1
One UI 5.1 were obtained, for example:
- Samsung Galaxy S23 Ultra
- Samsung Galaxy S23 +
- Samsung Galaxy S23
- Samsung Galaxy S22 Ultra
- Samsung Galaxy S22 +
- Samsung Galaxy S22
- Samsung Galaxy S21 Ultra
- Samsung Galaxy S21+
- Samsung Galaxy S21
- Samsung Galaxy Z Fold4
- Samsung Galaxy Z Flip4
- Samsung Galaxy Z Fold3
- Samsung Galaxy Z Flip3
One UI 5
One UI 5 is a version built on Android 13.
Samsung focused on speed, fluidity, personalization, and privacy.
Date of publication One UI 5
One UI 5 began publication in 2022.
First came the turn Galaxy S22.
News One UI 5
One UI 5 brought:
- Android 13,
- better animation,
- more customization options,
- new regimes and routines,
- better privacy,
- improved notifications,
- more stable system.
Supported devices One UI 5
One UI 5 were obtained, for example:
- Samsung Galaxy S22 Ultra
- Samsung Galaxy S22 +
- Samsung Galaxy S22
- Samsung Galaxy S21 Ultra
- Samsung Galaxy S21+
- Samsung Galaxy S21
- Samsung Galaxy S20 Ultra
- Samsung Galaxy S20+
- Samsung Galaxy S20
- Samsung Galaxy Z Fold4
- Samsung Galaxy Z Flip4
- Samsung Galaxy A53
- Samsung Galaxy A33
One UI 4.1
One UI 4.1 is an update built on Android 12.
She first appeared with a series Galaxy S22.
News One UI 4.1
One UI 4.1 brought:
- improved cameras,
- RAW Expert,
- better gallery,
- improved video calls,
- Smart Widgets,
- better content sharing.
Supported devices One UI 4.1
One UI 4.1 were obtained, for example:
- Samsung Galaxy S22 Ultra
- Samsung Galaxy S22 +
- Samsung Galaxy S22
- Samsung Galaxy S21 Ultra
- Samsung Galaxy S21+
- Samsung Galaxy S21
- Samsung Galaxy S20 FE
- Samsung Galaxy Note20 Ultra
- Samsung Galaxy Note20
- Samsung Galaxy Z Fold3
- Samsung Galaxy Z Flip3
One UI 4
One UI 4 is a version built on Android 12.
Samsung released it in 2021 and brought significant changes in privacy, appearance, and customization.
News One UI 4
The main news includes:
- Android 12,
- color palettes,
- better privacy protection,
- camera and microphone indicators,
- new widgets,
- better Samsung keyboard,
- improved gallery.
Supported devices One UI 4
One UI 4 were obtained, for example:
- Samsung Galaxy S21 Ultra
- Samsung Galaxy S21+
- Samsung Galaxy S21
- Samsung Galaxy S20 Ultra
- Samsung Galaxy S20+
- Samsung Galaxy S20
- Samsung Galaxy Note20 Ultra
- Samsung Galaxy Note20
- Samsung Galaxy Z Fold3
- Samsung Galaxy Z Flip3
- Samsung Galaxy Z Fold2
- Samsung Galaxy A52
- Samsung Galaxy A72
How to check the version One UI
Version One UI You can find out directly in your phone settings.
- Open Settings.
- Tap About phone.
- Select Software Information.
- Find the Version item. One UI.
How to update One UI
Update One UI can be checked manually.
- Open Settings.
- Tap Software Update.
- Select Download and Install.
- Wait for the new version to be found.
- If an update is available, confirm the installation.
We recommend that you have your phone charged to at least 50% and connected to Wi-Fi before updating.
How long does Samsung support One UI
Samsung is one of the manufacturers with the longest support for Android.
Selected newer models Galaxy they gain:
- up to 7 generations of Android,
- up to 7 years of security updates.
Older models typically received shorter support, such as three or four major Android updates.
Galaxy AI a One UI
Galaxy AI is from One UI 6.1 one of the most important parts of the Samsung system.
Among the main features Galaxy AI belongs:
- Circle to Search,
- Live Translate,
- Interpreter,
- Chat Assist,
- Note Assist,
- Transcript Assist,
- Photo Assist,
- Generative Edit,
- Browsing Assist.
One UI a Samsung DeX
One UI support Samsung DeX on selected phones and tablets Galaxy.
DeX allows you to turn your Samsung device into a desktop environment with support for a monitor, keyboard, and mouse.
Works best on:
- row Galaxy S,
- row Galaxy Z Fold,
- tablets Galaxy Tab S,
- selected models Galaxy Tab FAITH.
One UI a Samsung Knox
Samsung Knox is a security platform integrated into One UI.
Protects:
- personal data,
- company data,
- payment details,
- passwords,
- biometric data.
Knox is one of the main advantages of Samsung devices Galaxy.
One UI vs pure Android
One UI it is significantly richer than pure Android.
benefits One UI:
- more functions,
- better multitasking,
- Galaxy AI,
- Samsung DeX,
- GoodLock,
- advanced display settings,
- better connectivity with Samsung devices.
Pure Android is simpler, but doesn't offer as many features as One UI.
Most common problems One UI
After updates, users sometimes encounter the following issues:
- faster battery discharge,
- slower system after installation,
- problems with notifications,
- application crashes,
- problems with Bluetooth,
- Android Auto not working,
- reduced watch durability Galaxy Watch.
How to fix problems after an update One UI
Recommended steps:
- Restart the device.
- Update applications in Galaxy Store a Google Play.
- Wait a few days for the system to optimize.
- Check for additional security updates.
- Clear the cache of problematic apps.
- As a last resort, perform a backup and factory reset.
It's worth updating One UI?
Yes. Update One UI usually bring new features, increased security, better optimization and new options Galaxy AI.
For older phones, it is advisable to wait a few days after release to see if any major bugs appear.
Frequently asked questions about One UI
What is One UI?
One UI is Samsung's user interface built on Android.
Je One UI Android?
No. One UI is a superstructure over Android.
When was it? One UI introduced?
In 2018.
What is the latest version? One UI?
The latest versions include One UI 8 to One UI 8.5.
What is One UI 8.5?
Modern updates One UI with improved Galaxy AI, security and optimizations.
What is One UI 8?
Large version One UI built on Android 16.
What is One UI 7?
Version One UI built on Android 15 with a significant system redesign.
What is One UI 6.1?
The version that brought Galaxy AI to a wider portfolio Samsung device.
What did it bring? One UI 6?
Android 14, new quick toggle panel and better customization.
What did it bring? One UI 5?
Android 13, smoother animations, modes and routines.
What did it bring? One UI 4?
Android 12, color palettes and new privacy features.
How do I find out the version? One UI?
In Settings, under About phone and Software information.
How to update One UI?
In Settings via Software Update.
Je One UI free?
Yes
Will get my Samsung One UI 8?
It depends on the model, age of the device, region, and software support.
He will get Galaxy S24 One UI 8?
Yes I'd love to Galaxy S24 is among the supported models.
He will get Galaxy S23 One UI 8?
Yes I'd love to Galaxy S23 is among the supported models.
He will get Galaxy S22 One UI 8?
It depends on the specific support plan and region.
He will get Galaxy Z Fold6 One UI 8?
Yes
He will get Galaxy Z Flip6 One UI 8?
Yes
He will get Galaxy Tab S9 One UI 8?
Yes I'd love to Galaxy Tab S9 is among the supported tablets.
What is Galaxy AI?
Samsung's AI suite integrated into One UI.
What version is it from? Galaxy AI v One UI?
Galaxy AI came with One UI 6.1.
What is Circle to Search?
A function that allows you to search by circling an object on the screen.
What is Live Translate?
Real-time call translation feature.
What is Photo Assist?
AI photo editing tool.
What is Note Assist?
AI features for working with notes in Samsung Notes.
What is Transcript Assist?
Features for transcribing and summarizing voice recordings.
What is Now Bar?
New element One UI 7 showing live information on the lock screen.
Je One UI better than pure Android?
For Samsung users, yes, because it offers significantly more features.
Has One UI Samsung DeX?
Yes, on supported phones and tablets.
Has One UI Samsung Knox?
Yes
Je One UI safely?
Yes, it uses Samsung Knox and regular security updates.
Why does the battery drain quickly after the update?
The system will optimize itself for several days after a major update.
What to do after the update One UI?
Restart your phone, update your apps, and wait a few days for optimization.
Can I go back to the older one? One UI?
Normally not, reverting to an older version is not recommended for regular users.
Je One UI available on all Samsung phones?
On modern phones Galaxy yes, older and very cheap models can use lightweight varianty.
What is One UI Core?
Light version One UI for cheaper devices Galaxy.
Has One UI advertising?
Samsung has significantly reduced advertising in system apps in recent years.
supports One UI Good Lock?
Yes, in supported markets.
What is Good Lock?
Samsung apps for advanced customization One UI.
supports One UI widgets?
Yes
supports One UI Always-On Display?
Yes, on phones with a supported display.
supports One UI regimes and routines?
Yes
It works One UI on tablets?
Yes, tablets Galaxy Tab they use One UI optimized for larger displays.
It works One UI on the watch?
Galaxy Watch they use One UI Watch.
How long do Samsung phones get updates?
Selected new models up to 7 years old.
It is a good deal One UI?
Yes, One UI It is among the best and most equipped Android builds on the market.
Technical Specifications
| Performance date | 2018 |
