Huawei has started distributing a fresh security update for the Watch 5 and Watch Ultimate 2. This release brings the software version to HarmonyOS 6.1.0.330 and is currently moving out to global units. With a file size of approximately 300MB, the update targets specific improvements to system stability and communication performance.
The primary focus of this firmware package is the integration of the July 2026 security patches. These patches provide defenses against known vulnerabilities to ensure data remains protected on the wrist. Beyond security, the company addressed reports regarding connectivity reliability, meaning users who experienced interrupted communication between their wearable and smartphone should see better behavior after installing this patch.
This rollout follows the recent introduction of HarmonyOS 6.1, which added a suite of features to these devices. The manufacturer continues to prioritize monthly firmware releases to maintain hardware functionality and address bugs as they appear. If you own one of these models, the update notification should arrive via the companion app on your paired smartphone.
To perform the installation, ensure the device maintains a stable Bluetooth connection. The watch may restart during the process to finalize the changes. Once the progress bar reaches completion, the system returns to its normal state. As with any global release, availability varies by region and carrier, so check your device settings if the notification has not yet appeared.