: You buy two eligible smartphones from the same manufacturer on a qualifying 36-month installment agreement.
: The "free" phone isn't immediate. AT&T provides monthly bill credits (e.g., $20–$30 per month) that eventually cover the cost of the second device over the life of the installment plan. at&t buy a phone get one free
: You must add at least one new line of service to a qualifying unlimited plan . : You buy two eligible smartphones from the