This unlocked iPhone is compatible with both GSM and CDMA networks, allowing you to choose your preferred carrier. It has been tested for battery health and is guaranteed to have a minimum capacity of 80%. The device has undergone a full diagnostic test to ensure it functions like new and any prior user personal information has been removed. Please note that headphones and a SIM card are not included, but it does come with a generic (MFi-certified) charger and charging cable. The device has been inspected and guaranteed to have minimal cosmetic damage, which is not noticeable when held at arm's length.