Samsung One UI 8.5 Testing Begins for Galaxy Z Fold 7

Samsung starts One UI 8.5 internal testing on Galaxy Z Fold 7 just months after launch. Android 16 based update brings AI upgrades, battery tweaks

 Samsung is wasting no time with software updates for its latest foldable powerhouse. Just months after launching the Galaxy Z Fold 7 in July 2025 with One UI 8.0 on Android 16, the company has kicked off internal testing for One UI 8.5. This early development signals a quicker-than usual refresh, keeping the Z Fold 7 ahead in the foldable game.

Firmware builds like F966BXXU6BYK7 have been spotted on global units. This isn't a public beta yet it's all behind-the-scenes work to ensure stability before wider release. The testing also covers the Galaxy Z Flip 7 and Z Flip 7 FE, showing Samsung's focus on its full 2025 foldable lineup.

What's the Timeline Look Like?

Samsung's software schedule is heating up, but don't expect One UI 8.5 on your phone just yet. Here's the rundown:

• Beta Kickoff: Public testing could start as early as December 2025, likely hitting flagships like the Galaxy S25 series, Z Fold 7, and Z Flip 7 first.
• Stable Release: The full update debuts with the Galaxy S26 series in February 2026. From there, it rolls out to existing devices like the Z Fold 7 by Q2 2026.
• Broader Support: Thanks to Samsung's seven year promise, the Z Fold 7 will get updates through Android 23 and beyond, so this is just the start.

This pace is faster than past .5 updates, which often felt like minor tweaks. Internal builds first appeared in September 2025, and new ones confirm steady progress.

Sneak Peek: Features to Get Excited About

Samsung hasn’t revealed the full changelog, but early tests suggest One UI 8.5 will bring meaningful improvements:

• Smarter Galaxy AI: Faster on-device processing for tools like Live Translate and Note Assist.
• Better Battery Life: Possible new Network Battery Saver mode tailored for foldables.
• Smoother Foldable Experience: Enhanced multitasking across inner and cover screens.
• UI Polish: Refined animations, haptics, and design for a premium feel.

These upgrades build on One UI 8.0 features like the improved Capture View in the camera app ideal for reviewing photos on the Z Fold 7’s large inner display.

Why Galaxy Z Fold 7 Owners Should Care

If you own a Z Fold 7, this is great news. Getting One UI 8.5 within the first year keeps your device competitive with upcoming foldables from Google, Honor, and others. With testing already underway, the update should arrive polished and stable.

Samsung’s foldable lineup is evolving fast, and this accelerated timeline shows they’re committed to keeping users updated. Watch the Samsung Members app beta invites may drop before the end of 2025.