Samsung begins rolling out the One UI 8 Watch update in the United States. The main software, which weighs about 2GB and includes a security patch from earlier, is being made available to owners of the original Watch Ultra.
PDA build version L705USQU1BYFE in the US is the stable One UI 8 Watch upgrade that Samsung enthusiasts with Galaxy Watch Ultra may identify. It’s a significant update that adds health monitoring capabilities and a new user interface.
Samsung released the Galaxy Watch Ultra 2025 on July 9. Compared to the original models, this smartwatch has new colors and more storage. The Watch 8 and Watch Ultra 2025 also marked the official release of the updated Watch OS.
One UI 8 Watch update comes to US

Wear OS is the foundation of Samsung’s One UI 8 Watch. It gives your smartwatch a longer battery life. Reimagined tiles, slicker animations, and reliable functioning are all part of the company’s significant redesign.
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