Huawei’s HarmonyOS NEXT in Mate 70 series of smartphones is the company’s first fully self-developed OS that reportedly no longer uses open-source Android code (Arjun Kharpal/CNBC)

Arjun Kharpal / CNBC:
Huawei's HarmonyOS NEXT in Mate 70 series of smartphones is the company's first fully self-developed OS that reportedly no longer uses open-source Android code  —  Huawei on Tuesday launched the Mate 70 series of smartphones that can run on the company's latest self-developed operating system …