Just recently, Samsung published an official introduction for the One UI on its YouTube channel. This is the same Samsung One UI video that they debuted when One UI was announced in the Samsung Developer Conference last month. One UI is a full replacement of Samsung Experience UI, which as in turn a replacement of the Samsung TouchWiz.
The Samsung One UI video is just over 1 minute long, but it managed to showcase almost everything that the UI has to offer. Equipped with a new design and impressive features, the Samsung One UI is really something to behold. One UI’s intuitive design includes a more user-friendly font that is easy to read and aesthetically pleasing to look at. The new interface also features simpler icons, so you can focus on whatever you do best. One UI also boasts a better night mode experience and much easier one-handed smartphone navigation.
The video being made public may be a signal that the company is ready to rollout a stable Android Pie update soon. As of now, the Samsung One UI is now available as beta in some countries for S9 and S9+ devices.
https://www.youtube.com/watch?v=X3LVk0i6bY4