iOS 27 Introduces New 'iPhone Handoff' Feature

Apple has added a new "iPhone Handoff" feature to iOS 27 that will allow you to switch between two iPhones while using the same phone number on each device. This functionality was briefly mentioned during the WWDC 2026 keynote in June, on a slide that listed hundreds of new features coming in iOS 27 and corresponding software updates, but Apple never shared any further details at the time. MacRumors forum member pdfu today shared a video that demonstrates how the feature will work, using two simulated iPhones running in Xcode 27's Device Hub. "iPhone Handoff" can be set up from the Settings app, under the Cellular menu. During the setup process, you can choose which iPhone you want to be the main device that you use most often and which one you want to be the companion device. Apple says a user's main eSIM will remain on the main iPhone, while the companion iPhone will receive a companion eSIM, and this will enable you to switch between the devices back and forth while us