Samsung has officially flipped the switch on One UI 8, the company’s latest software experience built on Android 16. The first phones to taste the update are, unsurprisingly, the brand-new Galaxy S25 lineup. But the good news doesn’t stop there—Samsung has also published a detailed rollout schedule, so owners of older devices now know when to expect their turn.
Leaks had hinted that the Android 16 update would drop around September 18, and Samsung’s confirmation makes that timeline all but certain. While the update started rolling out yesterday in South Korea, other regions won’t have to wait long. Most international markets should start seeing the update hit devices before the end of the week.
What’s inside One UI 8? According to Samsung, quite a lot. The update introduces fresh design tweaks, new AI-powered features, and deeper personalization options. Highlights include enhanced multimodal AI tools, smarter performance optimization, and upgrades to Now Bar and Now Brief, making your Galaxy phone feel more adaptive and intelligent than ever.
Samsung Galaxy Android 16 (One UI 8) Release Timeline
Last week, a leaked roadmap of Samsung’s Android 16 rollout made the rounds on Twitter, but it turns out the company moved even faster for its flagship lineup. The Galaxy S25, S25+, and S25 Ultra received the update ahead of schedule—though only in select markets. Now, Samsung’s Brazil division has stepped in to give us something more concrete: an official release schedule that covers not just the S25 family, but also the Galaxy S24 and S23 lines, Galaxy Z Fold and Flip models, tablets, and mid-range A-series devices.
It’s worth noting that these dates apply specifically to Brazilian variants, so rollout timings in other regions—including the U.S.—may differ. Still, Samsung usually follows a similar “newest first” approach worldwide, so this timeline is a solid guide for what to expect.
Samsung Galaxy Android 16 (One UI 8) Rollout Schedule
Galaxy phones
| Device Models | Release Date |
|---|---|
| Galaxy S25, S25+, S25 Edge, S25 Ultra | Around September 18 |
| Galaxy S24, S24+, S24 FE, S24 Ultra | Starting September 25 |
| Galaxy Z Fold 6, Z Flip 6 | September 25 |
| Galaxy S23, S23+, S23 FE, S23 Ultra | October 2 |
| Galaxy Z Fold 5, Z Flip 5 | October 2 |
| Galaxy S22, S22+, S22 Ultra | October 6 |
| Galaxy Z Fold 4, Z Flip 4 | October 6 |
| Galaxy S21 FE | October 16 |
| Galaxy S20 / S21 series (standard models) | ❌ No Android 16 update |
Galaxy A-Series
| Device Models | Release Date |
|---|---|
| A36 5G, A56 5G | Starting September 25 |
| A55 5G, A35 5G, A26, A17, A17 5G | October 2 |
| A54 5G, A34 5G, A25 5G, A16 5G, A16, A15 5G | October 6 |
| A73 5G, A53 5G, A24, A15, A07, A06 5G, A06 | October 16 |
| A33 5G | October 23 |
Galaxy Tablets
| Device Models | Release Date |
|---|---|
| Tab S10, S10+, S10 Ultra, S10 FE, S10 Lite | Starting October 2 |
| Tab S9, S9+, S9 Ultra, S9 FE | October 6 |
| Tab S8, S8+, S8 Ultra | October 16 |
Samsung’s rollout strategy remains predictable: flagships first, then folding phones, followed by older premium devices and mid-rangers. If you own a recent Galaxy smartphone or tablet, chances are you’ll see One UI 8 with Android 16 land on your device within the next 30–45 days.
