Samsung regularly updates its One UI operating system. The last version was 4.1 (February 2022). One UI 5 rolls out in late October, a little over two months after Android 13.

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One UI 4.0 and 4.1

One UI 4.0 added several usability improvements, including haptic feedback and rounded widgets. It also added enhanced privacy features related to location data.

Samsung followed this with minor updates in version 4.1. Building on the usability theme, it added widget stacks in a nod to the popular iPhone feature.

Samsung Pay can now store your license, personal details, and identity-related items such as boarding passes.

The Calendar app became more intelligent and tightly integrated into the phone's operating system and apps. For example, it picks up the date and time in messages so you can add events to the Calendar swiftly and conveniently.

In the camera, the Night Mode feature became available for Portrait orientation.

One UI 3 and 3.1

Samsung began rolling out One UI 3 in December 2020. The new interface featured a few design upgrades, including a streamlined notification shade, more straightforward alerts, redesigned widgets for the home screen, a new aggregator screen called Samsung Free, and some changes to the lock screen.

The One UI 3.1 update added new camera features, including the option to save photos simultaneously in multiple formats, an object eraser tool, and enhanced autofocus. Other new features included multi-mic recording and Auto Switch, which automatically syncs your music when you switch Galaxy devices.

One UI 2 and 2.5

In February 2020, Samsung released One UI 2, which added several features, including an enhanced Dark Mode, a screen recorder, and a few interface changes. One UI 2 also benefited from many of the enhancements offered in Android 10. The following September, Samsung released One UI 2.5.

The screen recorder captures what's happening on the screen. It also captures sounds picked up by the microphone and audio playing on the phone. There's an option to add a video selfie feed and to doodle on the screen while recording.

Samsung added two options for displaying notifications of incoming calls: a full-screen alert (as on stock Android) or a floating pop-up, so you’re not interrupted while playing a game or watching a video.

What is Samsung One UI?

Samsung One UI is the company’s simplified and uncluttered custom interface for Android. The One UI user experience is beneficial for larger screens and one-handed use, which makes sense, as the company popularized the phablet with its Note series.

One UI started rolling out in early 2019 to Galaxy smartphones. It replaced Samsung Experience.

Web page that says "interact naturally" with a hand holding a smartphone next to it.

Samsung splits the screen in many apps like Messages, putting content at the top and buttons within easy reach of your thumb.

The Clock app, for example, shows how long it will be before the next alarm goes off, while you can manage your alarms with controls at the bottom. Also, you'll see larger text in the viewing area at the top. For big phones, this layout is easier on the hands.

This split-screen approach also works well with the company’s foldable phones, with actionable items on one side and view-only content on the other.

One UI is also more comfortable on the eyes, with vivid colors and a rounded design for app icons and other elements.

Web page that says "alarm in 8 hours" next to a peerson in bed looking at a phone

One UI also has a consistent dark mode across apps, so you’re not kept awake by the phone’s brightly lit screen. Samsung’s do not disturb mode is another way to stay focused.

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