I will begin this with I am technology challenged. DD20 needs a new phone and her Ipod died last week, so I thought we should get her an Iphone and it can work as both. I am unsure of which one to get and how much memory she will need to keep music on it. She is due for an upgrade, so that is making it somewhat affordable. Any help would be greatly apprecaited. I hate to go the store not knowing and have them sell me a phone that is way over budget and not what she needs.