Samsung has started rolling out the One UI 8 Watch update to the cellular version of the Galaxy Watch 7. This major software release was previously available only for the Wi-Fi model. The expansion brings the latest Wear OS 6 experience and new security patches to LTE users globally.
According to user reports on Reddit, the update is now live. This confirms Samsung's continued commitment to enhancing its newest wearable devices with timely software support.
The new firmware carries the version number L315FXXU1BYI4. It is a substantial download, with a file size of approximately 1,920MB. This large size reflects the significant new features and system-level changes included in the update.
Alongside the new user interface, the update includes the September 2025 security patch. This patch addresses numerous vulnerabilities to protect user data and device integrity. The rollout appears to be international, based on the English-language content seen in shared screenshots.
The One UI 8 Watch update represents a substantial leap for the Galaxy Watch 7 series. It introduces a refreshed design, new health tracking capabilities, and improved performance. These enhancements aim to provide a more intuitive and powerful smartwatch experience for all users.
This sequential rollout strategy allows Samsung to manage server load and ensure a smooth deployment. It guarantees that both Wi-Fi and cellular customers of the Galaxy Watch 7 now have access to the same advanced software features and security protections.