Apple's new CEO John Ternus unveiled the iPhone Duo, a foldable smartphone with a 5.4-inch outer screen and 7.6-inch internal display, marking the most radical physical change to the iPhone in nearly 20 years. The device launches at $1,999 and represents Ternus's debut as CEO following Tim Cook's tenure, positioning Apple to compete with Samsung and Huawei's existing foldable offerings. The announcement also included updates to existing product lines and AI-enabled features through Siri.