There's only one iPhone manufacturer, and that seems to be extremely important to many people-- even extending to limiting their dating pool, apparently.

https://www.cnet.com/culture/iphone-or-android-your-phone-ch...

https://metro.co.uk/2021/12/26/owning-an-android-is-a-major-...

https://www.vogue.com/article/breathless-couples-who-are-not...