Built on Android 16, One UI 8 prioritizes performance, smarter apps, and sets the stage for a design overhaul in One UI 8.5
One UI 8 Now Live for Select Samsung Devices
Samsung has officially launched One UI 8, its latest software update built on Android 16, for a range of its devices — starting with the Galaxy A36, A55, A35, Z Fold 5, and Z Flip 5.
- Galaxy A36 5G: The update is now live in Europe and will expand globally, including to the U.S.
- Galaxy A55 & A35: The update is rolling out in South Korea now, with wider deployment expected from October 2.
- Galaxy Z Fold 5 & Z Flip 5: Stable One UI 8 builds are now available in South Korea.
Version Numbers to Know
Here are the current firmware builds:
- A366BXXU4BYI7 – Galaxy A36 5G (Europe)
- A556SKSU6CYI6 – Galaxy A55 5G (South Korea)
- TBA – Galaxy A35 5G (South Korea)
- F946NKSU5FYI8 – Galaxy Z Fold 5 (South Korea)
- TBA – Galaxy Z Flip 5 (South Korea)
You can check for the update manually by going to:
Settings > Software update > Download and install
What’s New in One UI 8
While One UI 7 was known for its major visual overhaul, One UI 8 takes a different approach: refinement over reinvention.
Key updates include:
- Smarter Calendar & Reminders apps: Easier task management and intelligent suggestions
- Improved Good Lock modules: Now more widely available and feature-rich
- Performance enhancements: More fluid animations and better battery efficiency
- Privacy & security tweaks: In line with Android 16’s tighter permission controls
Samsung is laying the groundwork for One UI 8.5, expected to introduce more visible design changes.
How to Prepare for the Update
Before installing One UI 8:
- Ensure your phone is charged to at least 50%
- Backup your data in case of interruptions or failed installs
- If the update isn’t showing yet, wait a few hours or try manual installation through the Settings app
