Samsung's One UI, which will power the Galaxy S10, makes US debut on the Galaxy S9

Samsung aims to make it easier for people to navigate their phones.

Samsung's One UI update rolled out on Tuesday to Xfinity Mobile users.
Juan Garzon / CNET

Samsung's has started rolling out One UI, its new mobile software, in the US.

Xfinity Mobile confirmed it released the One UI update for Samsung's Galaxy S9 and Galaxy S9 Plus phones on Tuesday. The update will be available on Galaxy S9, S9 Plus and Note 9 models through other carriers in the coming days and weeks, according to a spokesman for Samsung.

Samsung unveiled the redesigned mobile interface, which runs on top of Google's Android PIe, at its developer conference in November. The goal of One UI is to make interactions natural, even as new phone displays grow larger and take on foldable designs.

The One UI interface is designed to reduce clutter and distractions. Some of the new features include displaying the most-used functions first and placing buttons within your thumb's reach; allowing the top half of the screen to display content while the bottom half is used to navigate the phone; and improving the visibility of the screen so it's comfortable to stare at longer. 

Samsung had previously said that its future phones, including the Galaxy S10 and its foldable phone, will use the One UI interface. The interface works with Android Pie, but not with earlier versions of Google's mobile software. 

Published Jan. 29 at 1:59 p.m. PT. 
Update, 3:20 p.m. PT: Adds more links.
Update, Jan. 30 at 6:47 a.m. PT: Adds confirmation from Xfinity Mobile

Now playing: Watch this: What we know about Samsung's foldable phone

Galaxy S10: Everything we know

Galaxy X? Galaxy F? Samsung's foldable phone faces 9 big issues