Chinese smartphone maker Huawei has released its very own operating system, Harmony OS, which can be installed across an array of devices, and work as an alternative to Google's Android OS. Huawei started hyping the new system for its smartphones after losing access to Google services on the official version of Android for its new devices sold outside China, following a US ban. Huawei says Harmony OS is more versatile than the market OS leaders, Android and Apple's iOS, and created a conversion toolkit to make it easier for app developers to tweak Android apps to work on Harmony. But it faces an uphill battle to gain global market share in the OS market.