Question: are iphones both gsm and cdma?
Answer: By comparison, all iPhone 6s and iPhone 6s Plus models worked on both GSM and CDMA networks. A customer that purchases an iPhone 7 from Apple's website and selects Verizon as their carrier, on the other hand, would also be able to use the smartphone on AT&T, T-Mobile, Sprint, or any other GSM or CDMA network.