Huawei Watch 4 Pro users can now play games with HarmonyOS 4 update, beta testing begins - Gizmochina

Huawei Watch 4 with software update got new features and watch faces

huawei – XDA

Breaking: HarmonyOS 4 installed over 10 million Huawei devices in one month - Huawei Check

Huawei is Rolling Out The new HarmonyOS 4.0 Public Beta To its Smartphones and Smartwatches

Top 5 important points to note about HarmonyOS 2.0 user experience

Huawei set to launch HarmonyOS 4.0 on August 4th, officially confirmed - Gizmochina

HarmonyOS 4 for Huawei Watch 4 series rolling with crescent moon window, new watch faces and other features - Huawei Central

HarmonyOS 4 beta program announced for Huawei Watch GT 3, Watch Buds, and 7 other watches.

HarmonyOS 4.0 to be Unveiled this August - Phandroid

New HarmonyOS 4 features rolling out for Huawei Watch 4 Series - Huawei Central

Several new Huawei 5G Phones spotted in Bluetooth Certification