iOS 27 ships later this month with iPhone Handoff, a feature that lets two iPhones share a single phone number. One device acts as the primary, the other as a designated companion. A demo clip from Xcode 27's Device Hub shows the pairing setup in action.
The timing is not accidental. Apple's foldable iPhone Ultra is expected imminently, and Handoff solves an obvious problem: users will not want to carry a large, expensive foldable everywhere. A slim secondary phone becomes viable when both devices answer the same number.
The full piece at The Verge is worth reading for the Device Hub demo details and what the companion device designation actually controls. The feature was glossed over at WWDC in June. Now there is something concrete to evaluate.
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