Samsung continues to expand its testing of its new One UI 9 interface, based on Android 17, as it prepares to roll out the update to more Galaxy phones in the coming period. Following the start of the beta program for the Galaxy S26 series and indications of testing for the Galaxy S25 series and the upcoming Galaxy S26 FE, new information has revealed that three more phones have joined the internal testing phase.

One UI 9 testing is expanding to include three new Samsung phones.

Samsung has begun internal testing of the Galaxy A17 5G, A34, and A57.

New beta versions confirm that development work is ongoing ahead of the public launch.

Upcoming foldable phones will run the new interface at launch.

New data shows that Samsung has already begun testing One UI 9 on the Galaxy A17 5G, Galaxy A34, and Galaxy A57, indicating that the company is working to expand the number of devices eligible for the new update relatively early compared to previous releases. The

One UI 9 update for Samsung phones

is significant, as the Galaxy A series is one of Samsung's most popular globally, targeting a wide range of users with phones ranging from budget to mid-range. Therefore, starting testing on these devices represents an important step in the company's plan to bring the latest Android features and the One UI interface to a large number of users.

Leaked information reveals that the internal beta version for the Galaxy A17 5G has the build number A176BXXU5DZF1, while the version for the Galaxy A34 has the build number A346BXXUFGZF1. The Galaxy A57 is currently being tested with the build number A576BXXU3BZF3.

These build numbers indicate that development and testing are already underway at Samsung, a stage that typically precedes the release of public betas or stable versions to users. However, these numbers don't provide any direct details about the new features or changes that will arrive on these devices when the update is officially released.