There is probably no greater resistance than between the Android and iOS operating systems. There is a large number of supporters of both systems, insistently proving that this or that system is better. The CIRP research company conducted a study to identify adherence to smartphone brands.
The owners of smartphones were asked if they would buy the next smartphone of this brand, for example, the owners of Huawei were asked if they would buy the next smartphone of this brand. The study found that the owners of Android smartphones are more "tied" to the manufacturers of their mobile devices than the owners of iPhones. However, the gap is not so wide: the first group scored 91 percent, while the second group scored 86 percent. By the way, earlier in such studies, the owners of iOS devices had a small advantage.