Hi! I have an unlocked Chinese version iPhone 12 Pro Max, and I am unsure about its compatibility, as my phone didn't pass the IMEI compatibility check.
P.S. the Chinese version have 2 physical SIM slots, and they don't support eSIM service. Thus, I'm interested in activating with a physical SIM.
Hey there! Each device is unique and compatibility is dependent on a lot of factors including things like hardware and software. Devices from overseas may not always support US based carriers, but this link https://www.apple.com/iphone/cellular/ may help with showing some of the supported US models.