Apple's expensive iPhone X is now available for purchase unlocked and SIM-free in the United States. The smartphone is compatible with both GSM and CDMA networks, but don't expect attractive installment options.
Apple December 6, 2017
Apple has started selling the SIM-free unlocked models of the iPhone 6s and the iPhone 6s Plus. The SIM-free model of the iPhones allows customers to use their handset on any carrier.
Phones/Tablets/Mobile Tech October 9, 2015