iPhone newbie here - so bear with me
I'm wanting to get my GF an iPhone 4 ( not 4s ). So I want to buy second hand. She has an Orange sim only contract. What are my option - go for an unlocked phone, or an Orange phone?
Will she need a new sim to get all things working on the new phone? If so - how do you go about it ( i.e. - phone up Orange and ask??
).
Anything I should watch out for when buying a used iPhone 4 - probably look on Ebay, don't want to buy a stolen phone or anything like that.
Thanks all

I'm wanting to get my GF an iPhone 4 ( not 4s ). So I want to buy second hand. She has an Orange sim only contract. What are my option - go for an unlocked phone, or an Orange phone?
Will she need a new sim to get all things working on the new phone? If so - how do you go about it ( i.e. - phone up Orange and ask??
Anything I should watch out for when buying a used iPhone 4 - probably look on Ebay, don't want to buy a stolen phone or anything like that.
Thanks all