George Zhao, president of Huawei's sub-brand HONOR, unveils HONOR Vision series during the Huawei Developer Conference held in Dongguan, south China's Guangdong Province, Aug. 10, 2019. HONOR Vision is the world's first smart screen equipped with HarmonyOS, or Hongmeng in Chinese, Huawei's open-source operating system. (Xinhua/Liang Xu)