Question: what iphone is the model a1778?
Answer: Apple iPhone 7 (AT&T/T-Mobile/Global/A1778) 32, 128, 256 GB Specs. Please note that this A1778 iPhone 7 model is compatible with FDD-LTE bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29, and 30 as well as TD-LTE bands 38, 39, 40, and 41.