Apple Inc. is bringing its superthin iPhone Air to China after a pause that allowed local carriers to prepare for the eSIM-only device. Preorders start Oct. 17 after domestic carriers including China Mobile Ltd. won approval to support that feature. The device will be available in stores Oct. 22, a company spokesperson said. The slim, lightweight iPhone Air doesn't use physical SIM cards, making it the first smartphone from Apple to only offer eSIM connectivity.