Huawei's in-house operating system is called HarmonyOS, also known as Hongmeng OS in Chinese. It was first unveiled in 2019 and has since been integrated into over 900 million devices, including smartphones, tablets, smart TVs, smart watches, and other smart devices4.
Harmony OS was first unveiled in 2019 by Huawei, as a response to being placed on the US trade blacklist which prevented American firms from selling tech and software to the Chinese tech company without a license2.
US restrictions significantly impacted Huawei's smartphone business, as they were barred from using American tech and software, including Google's Android OS. This led to a drop in market share and challenges in the global smartphone market. However, Huawei adapted by developing its in-house operating system, Harmony OS, which now powers over 900 million smartphones and has contributed to the company's resurgence in the market.