One UI 9 is Samsung's custom Android skin built on top of Android 17. While Android 17 itself focuses on privacy, security and refined performance, Samsung has layered its own improvements on top, aimed at better adaptability across device types, expanded AI features and tighter ecosystem integration.
- Announced in May 2026, shortly after Google's own Android 17 rollout to Pixel devices
- Beta testing began on 13 May 2026 for the Galaxy S26 series, days ahead of Android 17's official unveiling at Google I/O 2026
- Unlike earlier One UI betas that were limited to South Korea at launch, the One UI 9 beta was made available in multiple regions at once, including India, Germany, Poland, the U.K. and the U.S.
- The Galaxy Z Fold8, Z Fold8 Ultra and Z Flip8 launched on 22 July 2026 with One UI 9 already installed, making them the first devices to run the update out of the box
- Core Android 17 additions carried into One UI 9 include flexible multitasking and a redesigned Google search bar below the homescreen dock