It's raining One UI 9 betas for Samsung devices this month. After opening the One UI 9 beta program for all of its flagship phones launched in 2023 and later and a couple of mid-range devices, Samsung has now released the One UI 9 Watch beta update for the Galaxy Watch 7 and the Galaxy Watch Ultra.
One UI 9 Watch is based on Wear OS 7, and its beta version for Samsung's 2024 smartwatches comes a week after the Galaxy Watch 8 and Galaxy Watch 8 Classic received it. The new update is rolling out in South Korea and should come to the US soon — these are the only markets where Samsung is making the One UI 9 Watch beta program available.
Firmware version: L300XXU2ZZI1 / L310XXU2ZZI1
Security patch: September 2026
Download size: ~1.9GB
One UI 9.0 Watch Beta 1 update for the Galaxy Watch 7's 40mm (left) and 44mm (right) versions | Source: WJGalaxy / Samsung Community
You can sign up to test the beta version of One UI 9 Watch through the Samsung Members app.
The update brings support for Antioxidant Index and Vascular Load on the Galaxy Watch 7 and the original Galaxy Watch Ultra. It also brings slightly refreshed UI design, new widgets, and other new features.
Antioxidant Index and Vascular Load features arrive on the Galaxy Watch 7 with the One UI 9 Watch beta update | Source: WJGalaxy / Samsung Community
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