The wait for One UI 9 Watch is finally coming to an end. Samsung has started rolling out the stable version of its latest smartwatch software, beginning with the Galaxy Watch 8 and Galaxy Watch 8 Classic.

One UI 9 Watch is based on Wear OS 7 and debuted with the Galaxy Watch 9 and Galaxy Watch Ultra 2 this summer. Now, Samsung is bringing it to existing watches, following a beta program that ran for around two and a half months.

As we reported earlier, the stable update started reaching Galaxy Watch 8 series owners in South Korea on November 9. It is available to both beta participants and those who stayed on One UI 8 Watch.

Samsung opened the beta program on August 26 and released six beta builds before the stable version arrived, making that a roughly 75-day testing period.

The stable rollout is starting later in the year than it did last time. Samsung released One UI 8 Watch for the original Galaxy Watch Ultra in late July, 2025, while the Galaxy Watch 7 followed in October.

However, this hasn't been Samsung's longest watch beta. One UI 6 Watch, the version that came before One UI 8 Watch, spent more than four months in testing in 2024 before stable updates started reaching beta participants.

The Galaxy Watch 8 series is first in line, with other eligible watches expected to follow soon. Those include the Galaxy Watch 7, original Galaxy Watch Ultra, and Galaxy Watch 6 series.

The update is also expected to reach the Galaxy Watch 5 series and Galaxy Watch FE. Samsung hasn't shared a complete rollout schedule, so the wait will depend on your watch model and region.

One UI 9 Watch brings various interface improvements and easier watch face customization, along with expanded health and fitness features such as Daily Cardio Load, Vitals, and Heart Health Score. Feature availability varies by watch model and market.

To check for the update, open the Galaxy Wearable app on your connected phone and head to Watch settings > Software update > Download and install.