Verizon
Verizon, one of the top network carriers in the country, offers you not one, but two lucrative deals to get iPhone 7. These are:
For Verizon Customers: First deal offers to provide iPhone 7 128GB at the same price of iPhone 7 32GB, which is at $749. If you want to upgrade your iPhone 7 32GB to 128GB or 256GB variant, Verizon will offer you $100 discount. To avail this offer, you also have to sign up for a new line of service with the carrier’s Unlimited Plan. All iPhone 7 Plus users, including iPhone 7 Plus 128GB variant can also avail this offer.
For non-Verizon customers: This deal involves exchanging your old phone and also porting your number from a rival carrier. So, when you opt for a new device payment plan with Verizon, you will get a $650 Visa prepaid card.

AT&T
AT&T provides to get your second iPhone 7 for free through its BOGO iPhone offer. To get this offer, first, you need to sign up for an AT&T Next Plan. Along with that, you need to open two lines – plan for the first line should be $50 or more, and the second plan should be a minimum of $20. It is also mandatory to subscribe to DirecTv that will cost $29.99. This offer applies to all iPhone 7 Plus variants, including iPhone 7 Plus 128GB.

T-Mobile
T-Mobile provides the best deals on iPhone 7 models with an attractive free upgrade option for storage. Thus, it is offering iPhone 7 256GB variant at the price of iPhone 7 128GB variant. So, it is for you to decide by paying $749, you want to purchase iPhone 7 128GB from outside dealer or iPhone 7 256GB from T-Mobile. In an exclusive BOGO iPhone offer, you will receive a $400 prepaid card in case you purchase a brand new iPhone from a carrier.

Sprint
Sprint offers a bumper bonanza in which you will get a second iPhone 7 for free for purchasing one iPhone 7. To get this offer, you need to pay for one iPhone 7 32GB in an EMI of $27.08 per month, over a period of 18 months. In this way, you will get your second iPhone 7 32GB free of cost as Sprint will pay for it. But, you need to make payment for two service lines.

So, compare the deals and go for the one which suits you the best.