oppo50w wireless charger to use 65w charging head. The HarmonyOS 1.0 and HarmonyOS 2.0 systems were released at the 2020 HDC Conference. At the Hongmeng OS 3 launch event, Yu said: to date, 150 million users have upgraded HarmonyOS. Next, Hongmeng or will usher in the biggest explosive product, but not Huawei Hongmeng mobile phone, but Huawei smart watch.