Samsung’s Galaxy Watch7 and Ultra Get One UI 9 Beta

Waiting for a fresh face on your wrist? Samsung has quietly started pushing the Wear OS 7-based One UI 9 Watch beta to the Galaxy Watch7 and the Galaxy Watch Ultra, joining last week’s beta for the Watch8 family. It’s the kind of update that nudges the interface forward — not a revolt, but a tidy redesign that feels deliberate.

Expect a refreshed UI and new widgets that rearrange how information sits on the small screen. Samsung also tacked on new health reads: Antioxidant Index and Vascular Load arrive for supported regions, though users in the United States will see a Blood Pressure Trend feature in place of those two. Small shifts like these change the wear experience in subtle, practical ways.

The beta weighs roughly 1.9GB and ships with firmware identifiers ending in ZZI1, along with the September 2026 security patch. For now, availability is limited to the US and South Korea — and you’ll need to enroll through the Samsung Members app to opt in. If you do, make sure your watch has sufficient battery and that you’ve backed up any data you care about; beta software is a playground, not a warranty.

This rollout sits alongside Samsung’s broader One UI 9 push on phones. Yesterday the company widened the Android 17-based One UI 9 beta to include ten more devices: the Galaxy S23 trio, Z Fold7 and Z Flip7, plus the Z Fold6, Z Flip6, A57, A56 and the Galaxy S24 FE. It’s clear Samsung wants parity between its wearable and phone ecosystems as the next major UI refresh lands.

If you’re tempted to try the watch beta, open Samsung Members, enroll, and follow on-screen instructions — the process is straightforward but deliberate. Expect some quirks. Expect improvements too. And if you’re documenting battery behavior or new watch faces, your feedback will help shape the public release.

Beta testing is where features are polished, and where users can steer a product before it’s set in stone — will you sign up and take One UI 9 for a spin?