My wife's line was eligible for an upgrade so I used it to purchase the iPhone 6 plus. I have to go pick it up tomorrow, but the phone is not going to go on her line. It will be going on my line and I will be giving her my old iPhone 5. How do I go about doing the switch because my current line has UNLIMITED DATA and I don't want to lose it. 1) Does the iphone 6 plus and iphone 5 have the same type of sim card and can I just do a swap of the two from each phone before activating the iPhone 6 plus for the first time. Has anyone had success trying this option? 2) Or can I just activate the new phone on my wife's line and then go to the my Verizon website and switch the phone to my line? I didn't know if i did this it would then lose my UNLIMITED DATA on my line. Please assist. Thank you.