Hi, I am anxious to find out all I can about interchangeable sim cards especially with Verizon. I am donating these efforts for a friend who may be phoneless for the next 2 days. She has an LG who may need another phone. I have an old(er) Sony Ericson that is being charged right now. I want to give her my Sony Ericson with the use of her sim card. Both phones are less than 2 years old. Mine newer than hers.If you (whoever you may be) , need more info on what models let me know. Perhaps my rather general question will suffice. Thank you, Roy B.