https://us.community.samsung.com/t5/Galaxy-Z-Flip/Z-flip-4-international-version/m-p/2482853#M8017 Cause different frequencies that's all I know. Buying an international phone is a risk cause it might not work or will partly work in the US Tue, 10 Jan 2023 19:40:02 GMT Yamialex224 2023-01-10T19:40:02Z