I'm from New Zealand but am currently in the United States for the next few months. I plan to buy an unlocked iPhone 7 from Apple, use an AT&T SIM (which I already have) in it while I'm here, and then take it back to New Zealand.
I know the phone should be unlocked so I'm not too worried about that, but I don't really know much about the 3G and 4G bands. Are the iPhone 7 bands compatible with cellphone networks in New Zealand? I've tried searching already for an answer but most are from several years ago.