Are there dissimilarities involving an iPhone for AT&T, T-Mobile, and Verizon? The iPhone designs for AT&T, T-Mobile, and Verizon are the exact same. If you choose to pay with the AT&T Installment Plan, your iPhone might be locked on the provider. For details on community help, make sure you see support.apple.com/en-us/HT204039 (Opens in a new wind