A device manufacturer/company that makes people who have iphones seriously consider swapping to the new company's offering. It is such a small tail of people who have an iphone and seriously consider moving to Android, with maybe Samsung being the highest quality and most attractive with Pixel also being pretty cool. I don't know what HarmonyOS is and I am pretty tech savvy. I think any company can make an ultra low spec phone and ship Android on it and get people to buy it on the basis of cost alone, but those people aren't cross-shopping iphones, so they're not a notable comparison. Arguably, with the exception of maybe high end Samsung and Pixel phones, Android phones and others are basically a whole different product category.