Samsung starts rolling out One UI 8.5 with Android 16, here’s which Galaxy devices are first

Samsung is kicking off its next big software push: One UI 8.5, built on Android 16, starts rolling out May 6, beginning in South Korea and then spreading outward in waves.

The headline for U.S. Galaxy owners isn’t just “new Android version.” It’s Samsung’s promise to push more Galaxy AI features across a wider range of devices than you typically see in a “.5” update, flagships, Fan Edition models, foldables, and even tablets. The fine print: timing and features will vary by model, region, and carrier.

And if you’ve been burned before by day-one bugs or battery hits, Samsung’s long beta cycle suggests this release has been heavily tuned, but not necessarily risk-free.

Rollout begins May 6 in South Korea, U.S. users should expect a wait

Samsung’s official starting line is May 6 in its home market, a common play in the phone industry. South Korea gets the first wave, then other countries follow as Samsung and carrier partners greenlight builds for different variants.

For Americans, that May 6 date is best read as a marker, not a guarantee you’ll see an over-the-air update the same day. Rollouts typically arrive in batches, and one carrier model can get it days or weeks before another.

Samsung is also openly warning that availability will differ by country and device. Translation: two people can install “One UI 8.5” and still end up with different feature sets depending on hardware and market rules.

First up: Galaxy S25 and S24 families, plus the newest Z Fold and Z Flip models

Samsung is naming a broad first-wave lineup. On the phone side, that includes the Galaxy S25 and S25 FE, the Galaxy S24 and S24 FE, and its foldables: Galaxy Z Fold7 and Z Flip7, plus Z Fold6 and Z Flip6.

That’s notable because foldables sometimes get treated like niche devices in update schedules. Here, Samsung is positioning them as core to the roadmap, important for features like app continuity between screens, multitasking, quick capture/edit tools, and other productivity tweaks that matter more on a folding display.

Still, “eligible” doesn’t mean “today.” Carrier approvals, regional software differences, and staged deployment can easily create gaps of several days to several weeks between markets.

Android 16 plus “Ambient Design” aims to refresh the look, and the feel

One UI 8.5 is based on Android 16, which typically brings under-the-hood improvements like stronger security controls, refined permissions, performance tuning, and better app compatibility. In real life, that can mean smoother multitasking, more reliable notifications, and fewer hiccups in heavy apps like photo editors, video tools, and games.

Visually, Samsung is spotlighting something it calls “Ambient Design,” built around blur effects across the interface. These kinds of changes can make the UI look cleaner and more layered, especially in quick settings, but they can also tax older hardware if not optimized well.

Samsung is also pointing to updates for quick settings and the lock screen, with more customization and usability tweaks. Those are the parts of the phone people touch dozens of times a day, so small changes can feel either like a quality-of-life win or an annoying disruption.

Galaxy AI expands, with a smarter Bixby and more call protection

Samsung is framing One UI 8.5 as a Galaxy AI expansion, with tools aimed at communication and creation. The company is highlighting features like assisted editing, photo enhancements, and audio tools designed to cut steps, like removing background noise from a video clip before you share it.

One of the more intriguing claims: a Bixby upgrade powered by Perplexity, a fast-rising AI search and answer engine. The real test won’t be whether it can spit out a decent summary, it’ll be whether it can actually work inside your phone life (messages, calendar, calls) without constant prompts, while still respecting privacy expectations.

Samsung is also calling out Call Screening, a feature category Americans know well thanks to years of robocalls and spam. If it’s implemented cleanly, it could reduce interruptions for everyone from small-business owners to older users. But Samsung is already signaling that availability may depend on region, language support, and local rules around transcription and recording.

Galaxy Tab S11 and Tab S10 are included, an important signal for Android tablets

Samsung says the Galaxy Tab S11 and Tab S10 are part of the rollout, too. That matters because Android tablets have long had a reputation for getting slower, less consistent software support than phones.

On tablets, Samsung’s “communication and creation” pitch hits differently: students marking up PDFs, creators doing quick edits on a larger screen, and people bouncing projects between a tablet and phone. A unified One UI update can make that handoff smoother, or force users to relearn where key settings moved.

And as always with major updates, expect a large download. Samsung hasn’t shared final file sizes here, but tablet firmware packages are often multiple gigabytes. Before installing, most users will want to free up storage and back up important files.

What to watch next

The big question for U.S. owners is pace: how quickly Samsung and carriers push One UI 8.5 beyond South Korea, and whether early builds are stable on real-world devices. The other question is consistency, how much of the headline Galaxy AI package actually lands on each model.

If Samsung delivers a smooth Android 16 upgrade without the usual performance anxiety, especially on year-old devices, it strengthens the company’s pitch that Galaxy phones age well. If not, the rollout could become another reminder that “same version number” doesn’t always mean “same experience.”