What you need to know
- Samsung has started rolling out One UI 8 Watch based on Wear OS 6 to the Galaxy Watch 7.
- The 2GB update includes the September 2025 security patch and build number BYI4.
- The update is currently available in Korea, with a wider global release expected soon.
After a long wait, Samsung has finally started rolling out A UI 8 watch, based on the latest Wear OS 6, for the Galaxy Watch 7.
Samsung has recently made a series of updates. The company has rolled out One UI 8, based on Android 16, to its flagship smartphones – even those released in 2022 – and is now updating the Galaxy Watch 7 to the latest version of Wear OS.
This rollout comes just days after Google began bringing Wear OS 6 to the Pixel Watch 3 and earlier models, which may have prompted Samsung to follow suit. THE A UI 8 for Watch update for the Galaxy Watch 7 has build number BYI4 and is approximately 2 GB in size. It also includes the September 2025 security patch.
For now, the update is only available in South Korea (via Tarun tanks on). Samsung hasn’t announced when it will expand to other regions like the US or Europe, but based on previous rollout patterns and more than two months of beta testing with no major bugs reported, the global version should arrive soon.
If you want to manually check for update on your smartwatch, go to Watch Settings > Watch Software Update > Download and Install.
One UI 8 Watch update starts rolling out in Korea first
As for what’s new, Samsung has added several health-focused features to the Galaxy Watch 7, including bedtime guidance, running coach and vascular load tracking.
The update’s Bedtime Guidance feature analyzes your sleep pressure and circadian rhythm to suggest an ideal bedtime. During this time, Vascular Load monitors the strain placed on your circulatory system during rest and activity and will offer insights and recommendations to help you improve your heart health.
The update also introduces the Now Bar which brings live activities to the smartwatch, as well as a new charging notification view. There are other features too, like an improved notifications interface, updated app icons, and new double pinch gestures for even more actions.
