Samsung initially launched the One UI 8 Watch update for the Galaxy Watch4 exclusively in South Korea. Now, the company has extended the rollout to include two additional countries: India and the United States.
This update is currently available only for the non-cellular version of the Galaxy Watch4. It includes firmware version R860XXU1JYK4 and features the October 2025 security patch.
If you reside in India or the US and have not yet received the One UI 8 Watch update on your Galaxy Watch4, you can manually check for it by opening the Galaxy Wearable app, then navigating to Settings > Software update.
