A:AnswerYou need a GSM sim card for ATT and T Mobile. Sprint needs a cdma sim card. There is nothing wrong with buying a refurbished IPhone. I bought a refurbished IPhone 6S Plus and you could not tell it from new! But, shop around!
A:AnswerNo! It’s pre-owned. I won’t recommend this product. I’ve had to replace the 1st “excellent condition” pre-owned iPhone 6s plus (128g) Best Buy sent me. It had camera issues and the battery was warned. I’m in the process of returning the 2nd “excellent condition” pre-owned iPhone 6s plus (128g) that Best Buy replaced the 1st iPhone with because it has similar problems. Hope this helps