One UI is a user interface developed by Samsung for its Android devices running Android 9 and later versions.
Select the version corresponding to your smartphone to get the tutorial.
OneUI 6 (Android 14)
OneUI 5 (Android 13)
OneUI 4 (Android 12)
OneUI 3 (Android 11)
OneUI 2 (Android 10)
OneUI 1 (Android 9)