The stable build carries the identifier BZJ7. Reports list firmware versions including L325NKOU3BZJ7 for the 40mm Galaxy Watch 8 and L335NKOU3BZJ7 for the 44mm model. The update is large, with reports putting the full download at about 2 GB. It also includes the October 5, 2026 security patch.
The South Korean release signals the start of Samsung’s broader One UI 9 Watch deployment. The company is expected to extend the update to more markets, although it has not announced a global schedule.
The update gives Galaxy Watch 8 owners a more polished software experience and deeper health-focused features. It also aligns Samsung’s wearables more closely with Google’s latest Wear OS platform.
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