Key Takeaways
1. The Huawei Watch D2 is receiving a global update to HarmonyOS 5.1, initially released in China in July 2025.
2. The European version of the update is identified as software version 5.1.0.18 and includes a new Hex Grid layout called Star Ring.
3. Three new watch faces have been added: Tranquil Landscape, Maximum Modules, and Speedway Chronograph.
4. A new feature for average sleep HRV monitoring helps users track sleep quality and recovery from stress.
5. The update is being rolled out in phases, and users can initiate it through the Huawei Health app.
The Huawei Watch D2 is now getting an update to HarmonyOS 5.1 for users all over the world. This update was first seen in China back in July 2025, where it was labeled as software version 5.1.0.16 (C00M05).
Update in Europe
Recently, folks in Europe have started to see a similar update, which is identified as software version 5.1.0.18 (SP2C00M05). Just like the earlier version, the change log mentions a new Hex Grid layout, called Star Ring in China. This new option adds to the already available Grid and List layouts. Additionally, there are three fresh watch faces added to the device: Tranquil Landscape, Maximum Modules, Color cut-out, Speedway Chronograph, and Galactic.
New Features for Users
Moreover, a new feature for average sleep HRV monitoring is now available. This tool helps you monitor how well you sleep and recover from stress and fatigue. When combined with heart rate, respiratory rate, and SpO2 readings, users will be alerted about their sleep when the watch sees a significant change from their usual metrics.
As for the software version 5.1.0.16 (C00M05), European users of the Huawei Watch D2 (currently priced at €364.85 on Amazon Germany) have reported seeing it. This update is being rolled out globally in phases, but the company hasn’t shared when everyone can expect to get HarmonyOS 5.1. Users can begin the update process by using the Huawei Health app.
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