I would like to purchase an iPhone 8 as a gift for a current Verizon customer who is still using an old iPhone 5c. I plan to purchase the phone outright and since the cost at the Verizon store is the same as with Apple, I would prefer to get it directly from Apple. My question is, can I buy her a SIM free phone from Apple or must I buy a Verizon activated phone from Apple instead? This person has a current, activated Verizon account with a Verizon iPhone 5c phone (which was paid off in monthly installments a long time ago). My guess is that since she already has a Verizon account with the 5c and an active SIM card, I could just go with the SIM free option and then all she would need to do is transfer her Verizon SIM card to the new phone and it will work fine. Is this a correct assumption?