One UI
One UI is a user interface developed by Samsung Electronics for its mobile, computing devices and TVs, including Android devices running Android 9 "Pie" and later.
The successor to Samsung Experience, Samsung designed One UI to make using larger smartphones easier and be more visually appealing. It was announced and unveiled at Samsung Developer Conference in 2018, and was updated in Galaxy Unpacked in February 2019 alongside the Galaxy S10 series, Galaxy Buds and the Galaxy Fold, since then receiving yearly upgrades.
The latest stable version, One UI 8, was released on July 25, 2025 with the launch of the Galaxy Z Fold 7, Z Flip 7 and Z Flip 7 FE after starting beta testing in May, with other phones receiving the update starting on September 15, 2025 with the Galaxy S25 series in South Korea.
Features
One UI was designed as part of a goal to make Samsung's hardware and software "work together in perfect harmony" and provide a more "natural" experience on large-screen smartphones. One UI displays most of the features that were in the Samsung Experience UX. A prominent design pattern in many of Samsung's system applications is to intentionally place common features and user interface elements along the middle of the screen rather than near the top. This makes them easier to reach with a user's thumb when using the device one-handed.For similar reasons, apps use large headers to push their main content towards the vertical center of the screen. The navigation bar supports the use of gestures and the usual 3-button system, while a system-wide "night mode" was also added. As with Android Pie upstream, the Overview screen of recent apps uses a horizontal layout, as opposed to the vertical layout of previous versions.
One UI Core
One UI Core was a slimmed down version of the original One UI feature set aimed towards the lower-end/budget models of the A Series, M Series, the F Series, the discontinued J Series and some budget A series Tablets that all came with the core version of One UI. Devices running One UI Core lacked features that the full version of One UI gets such as Screen recording, Knox Security, Samsung DeX, Link to Windows, Good Lock modules, and sometimes AR Emoji depending if the OS uses 32-bit or 64-bit. One UI Core hasn't been made available to those low-end devices since the release of One UI 6, and devices previously running One UI Core were instead given full One UI software with limited features with the update to OneUI 6.0 based on Android 14.Default apps and components
The following is a list of Samsung's own apps and components included with One UI. Not all of them come preinstalled or are compatible on every device, and availability may vary by region.| Software | Description |
| AR Doodle | Augmented reality camera for creating doodles |
| Bixby | Voice assistant |
| Bixby Vision | Augmented reality camera tools: Translate, Text copy, Discover, Wine |
| Calculator | Basic calculator with scientific mode, tips calculator, and unit converters |
| Calendar | Calendar app |
| Camera | Photo and video camera |
| Clock | Clock, alarms, timers and countdowns app. |
| Contacts | Contacts manager |
| Daily Board | Photo frame emulator for Galaxy tablets |
| Deco Pic | Decorating personal photos and videos |
| Device Care | Optimization tool for monitoring battery, storage, memory, and device security |
| Device Control & Media Output | Control home connected devices or switch media output to different devices |
| Digital Wellbeing | Screen time monitor tool |
| Email client | |
| Expert RAW | Image editor capable of editing raw image files |
| Galaxy Avatar | Augmented reality avatar and emoji creation tool, includes Avatar Camera, Stickers and Editor |
| Galaxy Enhance-X | AI-powered tool to automatically improve photos |
| Galaxy Store | Downloadable apps, games, themes and customizations |
| Galaxy Themes | Customization platform for downloading and applying themes, wallpapers, icons, and always-on display styles |
| Galaxy Wearable | Manager for Galaxy Watch, Galaxy Fit, Galaxy Buds, and Galaxy Ring wearable devices |
| Gallery | Photo and video gallery, includes stories and OneDrive backup |
| Gaming Hub | All installed games and Samsung instant plays |
| Good Guardians | Privileged utilities for Galaxy for device battery, temperature, and more |
| Good Lock | UI customization and productivity tools for Galaxy |
| Group Sharing | Share content with other Samsung accounts |
| Health Platform | An aggregator bringing together data from various health apps |
| Interpreter | Real-time translation tool for face-to-face conversations using voice and text |
| Messages | SMS, MMS and RCS text messaging client |
| Modes and Routines | Conditional automation tool |
| Multi control | Service for controlling multiple Samsung devices and dragging-and-dropping files |
| Music Share | Multi-device connect to Bluetooth speakers |
| My Files | File manager including FTP/SFTP client and SMB network client and integration with OneDrive and Google Drive |
| PENUP | Social network for drawings, preinstalled on phones and tablets with S Pen |
| Phone | Cellular and VoIP calling client |
| Quick Measure | Augmented reality measuring tool |
| Quick Share | File transfer tool with nearby Galaxy or Android devices and other devices using link, QR code, or installing . |
| Radio | FM radio client |
| Reminder | Reminder app with support for syncing with Microsoft To Do |
| Samsung Blockchain Wallet | Cryptocurrency management |
| Samsung Cloud | Cloud storage and backup with support for end-to-end encryption |
| Samsung DeX | Desktop-like interface for using Galaxy devices on an external display |
| Samsung Find | Asset tracking service for tracing, finding, locking and wiping lost or stolen devices, including smart tags, as well as sharing location with people |
| Samsung Flow | Text, screen, and file share between phone, tablet, and PC |
| Samsung Food | Personalized recipe discovery, meal planning, and cooking assistant platform |
| Samsung Global Goals | Advertising to support donation for the UN's Sustainable Development Goals |
| Samsung Health | Personal health tracking tool |
| Samsung Health Monitor | Health monitoring app for ECG and blood pressure measurements on supported devices |
| Samsung Internet | Chromium-based web browser |
| Samsung Highlights | Curated content hub showcasing selected articles, media, and recommendations |
| Samsung Kids | Restricted environment for kids with parental controls |
| Samsung Members | Community support and exclusive content, including device diagnostics |
| Samsung Music | Music player of formats including MP3, WMA, AAC and FLAC, with support for Spotify integration |
| Samsung News | News aggregator from various sources depending by region. Can be integrated into the One UI home screen. Replaced Samsung Free/Samsung O's Read tab. |
| Samsung Notes | Note-taking, sketching and PDF reader and editor |
| Samsung Shop | Storefront for Samsung Electronics products |
| Samsung TTS | Speech synthesis |
| Samsung TV Plus | Free ad-supported television streaming service |
| Samsung Visit In | Provides location-based notifications for nearby Samsung store offers |
| Samsung Wallet | Digital wallet |
| Smart Switch | Data transfer tool to move content to a new Galaxy device from any phone including iPhones, also serves as service for Smart Switch PC and backup for Galaxy Watches |
| SmartThings | Smart home management platform |
| Secure Folder | Private and encrypted sandboxed workspace using Knox |
| Secure Wi-Fi | VPN network service, available in select countries and regions |
| Smart View | Screen mirroring and casting using Miracast |
| Studio | Create a project using pictures and/or videos |
| Tips | Device information, manual and remote support; not available on low-end models |
| Voice Recorder | Voice recording in M4A format up to 256 kbit/s/48 kHz |
| Weather | Weather information provided by The Weather Channel |
Since One UI devices running Android use Google's version of the OS, numerous Google Mobile Services components also ship with the devices, except in Mainland China.
Typefaces
When One UI launched in 2019, the default system font continued to be the Google-developed Roboto. As before, Samsung have pre-installed their own Samsung Sans typeface and the "fun" typefaces Choco Cooky, Cool Jazz and Rosemary as options. One UI also introduced an additional pre-installed font, SamsungOne, a lighter typeface that was originally released in 2016 as an option from the Galaxy Store.With the release of One UI 6.0 in 2023, Roboto was replaced as the default system font by a new typeface, One UI Sans. Roboto continues to be pre-installed as an option, now under its own name.