Android devices offer a stock Android experience, which is a clean and minimalistic interface, while Samsung devices have their own customized user interface, One UI, which adds additional features and a unique visual style.

Source: https://www.devicemag.com/are-android-and-samsung-the-same/

As for the software, the Galaxy S23 Ultra runs One UI with Android 13, and is eligible for four years of OS updates and five years of software updates.

Source: https://screenrant.com/galaxy-s23-ultra-vs-iphone-14-pro-max/

In other words, the One UI 5.1 update comprises a slew of battery-related issues.

Source: https://www.ibtimes.co.uk/samsung-one-ui-51-causing-significant-decline-battery-life-galaxy-phones-1713046

It is said to run on Android 13 with One UI 5.1.1 on top.

Source: https://www.gadgets360.com/mobiles/news/samsung-z-flip-5-price-eur-1299-specifications-leak-galaxy-4155527

One UI 4 is expected to improve performance on Samsung devices that receive the update.

Source: https://www.devicemag.com/one-ui-4-vs-nova-launcher/

Samsung announced Android 13-based One UI 5.1 not long ago.

Source: https://www.ibtimes.co.uk/samsung-one-ui-51-causing-significant-decline-battery-life-galaxy-phones-1713046

Samsung might eventually bring the Material You design language to its smartwatches running Wear OS with the upcoming edition of One UI Watch.

Source: https://www.ibtimes.co.uk/samsung-galaxy-watches-reportedly-get-colour-palette-next-one-ui-watch-update-1712940

Samsung’s planning an Unpacked event for late July, currently rumored for July 26th, and that should be when we hear more about One UI 5.1.1’s release.

Source: https://www.gottabemobile.com/samsung-galaxy-android-13-update-info/

Samsung’s reportedly working on its new One UI 5.1 update and the software will reportedly land alongside the new Galaxy S23 in early 2023.

Source: https://www.gottabemobile.com/samsung-galaxy-android-13-update-info/

That said, some Galaxy devices have started facing battery health issues after receiving the One UI 5.1 upgrade.

Source: https://www.ibtimes.co.uk/samsung-one-ui-51-causing-significant-decline-battery-life-galaxy-phones-1713046

The company has pushed Android 13 and One UI 5 to a long list of devices.

Source: https://www.gottabemobile.com/samsung-galaxy-android-13-update-info/

The company was originally expected to launch the One UI 6 beta on Thursday, but it was pushed back a day.

Source: https://www.cnet.com/tech/mobile/galaxy-s23-owners-can-try-out-samsungs-one-ui-6-software-now/

The phone runs on Android 13, with the company's One UI skin on top.

Source: https://www.gadgets360.com/mobiles/news/samsung-m14-5g-price-uah-8299-launch-sale-specifications-features-3843472

There's probably more to see in One UI 6, but Samsung hasn't offered a full changelog yet.

Source: https://hothardware.com/news/samsung-one-ui-6-beta-based-on-android-14-teases-these-features-headed-to-galaxy-phones

The update is said to offer new features along with Samsung's One UI 5.0 interface, new home screen customisation, as well as performance improvements.

Source: https://www.gadgets360.com/mobiles/news/samsung-a04-android-13-update-one-ui-5-0-changes-features-galaxy-3790067

With Samsung’s latest software One UI 6, the company is bringing a new feature called Auto Blocker.

Source: https://www.express.co.uk/life-style/science-technology/1831230/samsung-galaxy-new-android-update-iphone