Galaxy Watch 7 and Watch Ultra Join One UI 9 Watch Beta as Watch 8 Gets Beta 2

Samsung widened its Wear OS 7 testing on two fronts today. The Galaxy Watch 7 and the first-generation Galaxy Watch Ultra can now pull the One UI 9 Watch beta in South Korea, and on the same day the Galaxy Watch 8 moved to a second beta build that fixes an always-on display bug which had been showing the wrong time.

Both releases carry the September 2026 security patch. Neither has reached beta testers outside Korea yet, so if you enrolled elsewhere, there is nothing to install right now.

The Watch 7 and Watch Ultra build is a big one

The beta arrives as firmware L310XXU2ZZI1 and L310OXM2ZZI1, and it is roughly 1.9GB — large enough that you will want the watch on its charger with a stable Wi-Fi connection before you start. Samsung is delivering it through a banner in the Samsung Members app rather than as a routine software update prompt.

The headline changes are in Samsung Health, which gains reworked sleep insights, alongside refreshed interface elements across the system. The build also exposes Vascular Load, a measurement Samsung surfaces as Blood Pressure Trend in the United States. That naming split matters: if the beta reaches US watches in its current form, expect the feature under the second name, not the first.

Watch 8's second beta is pure cleanup

The Galaxy Watch 8 and Watch 8 Classic build, versioned ZZI1, adds no new features. Samsung's changelog lists four items:

• Stabilization code for general device operation
• A fix for an error in the Samsung Health app
• Fixes for watch face errors, including problems when switching between faces
• A fix for the always-on display showing incorrect time data

That last one is the fix most testers were waiting on. An always-on display that reports the wrong time defeats the purpose of leaving it on, and it was one of the more visible complaints from the first Watch 8 beta.

Which watches are in, and which are not

Three generations are now testing One UI 9 Watch: the Galaxy Watch 7, the original Galaxy Watch Ultra, and the Galaxy Watch 8 and Watch 8 Classic. All of them are in Korea only for the moment.

The Galaxy Watch 9 and Galaxy Watch Ultra 2 are absent from the beta for a straightforward reason — they shipped with One UI 9 Watch preinstalled when they launched in July 2026. There is nothing for their owners to test.

A US expansion is the expected next step, since Samsung's watch betas have historically opened in Korea before adding other regions. Samsung has not published a date, so treat any specific timing you see as guesswork until the company says otherwise.

Installing it, and whether you should

If you are already enrolled in Korea, open the Samsung Members app on your paired phone and look for the beta banner, then follow it through to the update. Keep the watch on its charger throughout — a 1.9GB install on a smartwatch is not quick.

The more useful question is whether to enroll at all. This is a bug-fix beta on top of an earlier bug-fix beta, which tells you the software is still settling. Samsung Health errors were significant enough to warrant a fix in this build, and health and sleep tracking are exactly what most people buy these watches for. If your watch is logging workouts or sleep you actually care about, waiting for the stable release costs you nothing.

For related coverage, see our reports on One UI 9's phone beta reaching the Galaxy S25 and Z Fold 7, the Pixel Watch 5's first software update, and Motorola's return to Wear OS with the Moto Watch Ultra.