Huawei is currently recruiting beta testers for the sixth wave of Android-to-Harmony updates. It is these updates that cause the number of Harmony users to jump up so suddenly.
The company plans to transition 100 or so devices, a process that will continue into 2022, the report said.
Currently, the total is 106, of which 75 are phones like the P40, Mate 40 and Mate 30 series. Older flagships like the P20 and Mate 10 series as well as the nova 5i and 4e recently joined the party.
Huawei is adding more models to the public beta test while running an internal test for yet more devices.
Keep in mind that the 100 million number only counts the devices that updated to Huawei OS, there are newer phones, tablets and smartwatches that run the OS out of the box.
Also, HarmonyOS powers other smart devices (e.g. TVs) and IoT gadgets, the latest addition (as of an hour ago) is a laser printer.
Huawei officially released the HarmonyOS 2 operating system on June 2.