Verizon has aired a new commercial that takes a playful jab at its main competitor, AT&T. Touting the iPhone 4S on its network, Verizon’s ad shows a group of stranded boat passengers helplessly floating in the ocean.

They all have iPhones. One of the iPhones is on Verizon. We’ll let you guess which one is able to actually make the call for help…

Strangely, AT&T still isn’t losing that many iPhone customers to Verizon and the other competition.