If the latest leak is accurate, we may finally have our first real clue about Samsung’s wider One UI 8.5 rollout timeline.
Samsung is expected to release the stable One UI 8.5 update for the Galaxy S25 series in South Korea on April 30, 2026, with international markets likely following from May 4, 2026 if the company sticks to its usual release pattern. That leak also lands after a very long beta cycle, with the Galaxy S25 series already having gone through eight One UI 8.5 beta builds, even as the newer Galaxy S26 lineup has had stable One UI 8.5 from day one.
That date is important because it gives us a possible starting point for the rest of Samsung’s eligible Galaxy devices. Samsung has not officially published a broader One UI 8.5 rollout calendar yet, so anything beyond the Galaxy S25 series remains speculation for now. Still, if the company follows the same playbook it used for earlier mid-cycle One UI releases, we can make some educated guesses.
The clearest recent example is One UI 6.1.1. Samsung began rolling that update out in Korea on September 5, 2024, then expanded to North America and Europe on September 9, with additional Galaxy devices and countries following in the weeks after. That broader wave covered the Galaxy S23 series, S23 FE, Z Fold 5, Z Flip 5, and Tab S9 series.
Samsung followed a similar staggered pattern with One UI 6.1. The company announced in February 2024 that the update would start reaching the Galaxy S23 series, S23 FE, Z Fold 5, Z Flip 5, and Tab S9 series from the end of March. The rollout officially began on March 28, first targeting Samsung’s 2023 flagships, before expanding to many mid-range and budget devices through the following weeks. The Galaxy S22 series, Tab S8, Z Fold 4, and Z Flip 4 then started seeing wider rollout in early May.
If Samsung repeats that kind of schedule with One UI 8.5, then the Galaxy S25 series would likely go first in late April and early May, followed shortly after by Samsung’s other recent premium devices. That probably puts phones like the Galaxy S24 series, recent foldables, and Samsung’s premium Galaxy Tab models in the next wave, potentially in mid-to-end-of-May 2026.
From there, I’d expect older flagships and FE models to start joining in through late May into early June, with Galaxy A and lower-tier tablets likely coming later, depending on market, chipset, and carrier certification. That timeline is an inference based on Samsung’s previous rollout behaviour, not a confirmed device-by-device schedule.
In other words, if April 30 really is the day the Galaxy S25 gets the stable One UI 8.5 update in Korea, then the rest of the rollout may not be far behind.
For context, we’ve already covered one of the more unusual additions expected in this release, where your phone will nudge you to say hello to your family if you haven’t made contact in a while. We also previously rounded up the Samsung Galaxy devices eligible for the One UI 8.5 update.
