Galaxy Watch 7, Watch Ultra fourth One UI 9 Watch beta update is out

TL;DR

Samsung has released the fourth One UI 9 Watch beta for the Galaxy Watch 7 and Galaxy Watch Ultra in South Korea only.

The update adds five fixes, including stabilization improvements, Watch Nowbar fixes, charging screen behavior, and altimeter display corrections.

It also includes the October 2026 security patch with fixes for 62 security issues.

Samsung has released the fourth beta version of One UI 9 Watch (Wear OS 7) for the Galaxy Watch 7 and the Galaxy Watch Ultra. Since the brand opened the new software's beta program only in its home country, South Korea, that's the only region where it has released the new updates.

The update for the Watch 7 is 191.82MB in size and carries firmware version L310XXU2ZZJ5 (via Samsung Community). The one for the Galaxy Watch Ultra should have a similar size and carry a firmware version ending with ZZJ5.

According to the changelog, it brings five changes, as well as the October 2026 security patch, which fixes 62 security issues. You can check out the official changelog below.

Applied stabilization code for device operation

Fixed installation errors that occurred upon forced reboot during software updates

Fixed Watch Nowbar errors

Fixed an error where the charging screen would not switch

Fixed an altimeter information display error

You can get the fourth One UI 9 Watch beta update on your Galaxy Watch 7 and the Galaxy Watch Ultra by opening the Galaxy Wearable app and going to Watch settings > Watch software update > Download and install.

Abid Iqbal Shaik - Writer

First Samsung device: Galaxy S II

I’m a computer science engineer living in Hyderabad, India, who has a keen interest in automobiles and consumer electronics. My journalism career kicked off in 2017 with MySmartPrice where I wrote news, features, buying guides, and explanatory articles about technology among other things, and reviewed many products, including smartphones, tablets, laptops, PC components, smartwatches, audio devices, wearables, and smart home products. Since then, I have worked for 91Mobiles, Apple, and Onsitego, before finally landing on SamMobile.

Firmware Watch Galaxy Watch 7 Galaxy Watch Ultra Korea One UI 9 Watch South Korea Wear OS 7