A:AnswerBoost mobile is a No Contact cellular provider. They do not upgrade phones unless you have been a consistent on time paying customer of theres. Once you’ve established credibility with them they will offer you the opportunity to get almost any phone including any iPhone and offer you a payment plan. Other than that. If you want to have Boost mobile as your provider you must pay in full whatever phone you want. If you are switching from another company they do have some great promotions that might apply to you as well. Good Luck