: You technically finance both devices at 0% interest. The carrier then applies a monthly credit to your bill that matches the installment cost of the second, "free" device.
Why Do Phone Companies Give Free Phones in 2025? - AirTalk Wireless buy one get one free phone offers
: The "get one" device must generally be of equal or lesser value than the purchased device. : You technically finance both devices at 0% interest
: Most deals require at least one new line of service to be added to the account. Some providers, like US Mobile, may even require multiple numbers to be ported in from another carrier. The "Catch": Terms and Fine Print like US Mobile
Carriers like Verizon and T-Mobile structure these deals through installment plans rather than upfront discounts.