You can use the BOGO credit on any version of the iPhone 12.
Brad's Deals Editor Michael,
New customers who purchase any iPhone 12 device and open a new line of service with any Unlimited plan at Verizon will receive a $1,000 credit that can be put towards a second iPhone 12 device. All versions of the iPhone 12 qualify for this promotion, but only the standard iPhone 12 and the iPhone 12 Mini will have their full prices covered by the credit. This is the best deal we could find for anyone looking to purchase two new iPhones at Verizon. Shipping is free. Sales tax is charged in most states.