Samsung has begun rolling out One UI to the Galaxy S9 and the Galaxy S9+

One UI succeeds Samsung Experience, which replaced TouchWiz in 2016. The redesign includes a new Night Mode and has less bloatware than previous Samsung versions of Android. Moreover, Samsung has stressed that One UI will help people "focus on what really matters", primarily by making the OS easier to navigate with one-hand.

You can check whether One UI is available on your Galaxy S9 or S9+ by heading to Settings, Software update and pressing Download updates manually. SamMobile has confirmed that Samsung has rolled out One UI to devices in Germany, Italy, Switzerland, and the UAE via an OTA update. However, we have also seen users on Reddit state that Samsung has pushed the update out to some devices in Austria, Hungary and Romania.

We suspect that Samsung will roll out One UI for the Galaxy S9 and S9+ in the coming days and weeks for other regions, but there is currently no indication of when the company will release One UI for its other devices like the Galaxy Note 9. Moreover, the stable build of One UI does not contain the Bright Sight mode on which we reported a few days ago.