Why are you trying to stop her. Give her the info and let her get what she wants.
2 reasons why I'm trying....1. I'm an assholio and 2. She's done this before....thinking she wants a change, got an Android, only to start whining about it a couple weeks later. Inevitably returning to an iPhone. She's done this no less than 3 times. Look, I understand the fickleness of some females, but in my case, it's become acme of foolishness not to think she'll do it again....and she will. That's why.