Guaranteed to work. This is a SIM-free model purchased from a domestic Apple Store. I've always used it with a case and glass film, so there are no scratches on the exterior or screen (please check the photos). Included accessories are the glass film already applied and a Spigen case (let me know if you don't need them). Model: iPhone 15 Pro Max Color: Natural Titanium Capacity: 256 GB Battery: 84% Carrier: Apple Store SIM-free Accessories: Original box (cable unused) I'm selling it because I'm upgrading. Thank you.