Samsung has recently expanded the rollout of the One UI 8 Watch update for the Galaxy Watch4, which was initially launched in South Korea. The update is now available in two additional countries: India and the US.
Currently, the One UI 8 Watch update is being released only for the non-cellular version of the Galaxy Watch4. It includes firmware version R860XXU1JYK4 and the October 2025 security patch.
For users in India or the US who have not yet received the One UI 8 Watch update on their Galaxy Watch4, it is possible to check for the update manually by going to the Settings > Software update menu in the Galaxy Wearable app.
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