One UI
user interface developed by Samsung
One UI is a user interface developed by Samsung Electronics for its mobile, computing devices and TVs, including Android-based devices running Android 9 "Pie" and later. It is 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 on 7 November 2018, and was updated in the Galaxy Unpacked event on 20 February 2019 alongside the Galaxy S10 series, the Galaxy Fold, the Galaxy Watch Active, the Galaxy Fit and the Galaxy Buds, since then receiving yearly upgrades.
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 centre 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 (which gives UI elements and supported applications a darkened color scheme). As with Android Pie upstream, the Overview screen of recent apps uses a horizontal layout, as opposed to the vertical layout of previous versions.
This brief starts where responsible research should: with the source description of “One UI” as user interface developed by Samsung. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as user interface developed by Samsung. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 21, 2026. The linked authority identifier is Q60220726. 1 of 7 selected statements include explicit references; 4 carry qualifiers and 0 use preferred rank. The first chronological checks are 2018 and 2019.
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This entry incorporates text from “One UI” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.