Unfortunately, Apple does not disclose how many eSIM profiles can be stored. I was able to find the following information in a blog: In further tests, we were able to store up to six eSIM profiles on an iPhone. It is unclear whether this is a fixed value or whether the number of profiles that can be stored depends on the respective network operators or providers or their eSIM configuration. Apple itself only talks about the possibility of saving "several" eSIM profiles. A profile that is no longer needed can be deleted from the iPhone to make room for a new mobile phone connection.