Years after rivals first folded the future into their palms, Apple has stepped into China's foldable smartphone arena with the iPhone Duo — a passport-sized device unveiled in Cupertino under the stewardship of new CEO John Ternus. The company's deliberate lateness is itself a statement: where others experimented, Apple intends to define. Whether that philosophy of patient premium positioning can displace deeply rooted loyalties in the world's most competitive foldable market remains the central question of this technological moment.