Question: what is the difference between iphone 7 global and gsm?
Answer: A1660: The iPhone 7 A1660 is considered the global phone as it is compatible with both GSM and CDMA networks. ... In the US, you can get the A1660 on Sprint and Verizon, when you buy the SIM-free version, or when you buy the locked AT&T phone at BestBuy.