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Apple iOS 27 iPhone Handoff feature development

Updated 2 times since CLSTR started tracking revisions of this situation.

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2026-09-10 01:12 UTC → 2026-09-10 20:16 UTC · added removed

Apple is preparing to launch ‘iPhone Handoff’ as part of the upcoming iOS 27 release, expected later this month. release. The feature enables a single phone number to be shared across two different iPhones by designating one as a ‘main device’ and the other as a ‘companion device’. This functionality is intended to assist users managing both personal and work devices by allowing calls and messages to follow them between devices without requiring an additional subscription. Technical details indicate the system relies on eSIM technology rather than physical SIM cloning. technology. The primary device retains the main eSIM, while the companion device receives a specialized ‘companion-eSIM’ linked to the same number. The service is designed to automatically switch to whichever device the user unlocks, providing a notification via the Dynamic Island to confirm To use the transfer. While service, devices must be signed into the main same Apple Account, have Messages in iCloud enabled, and be compatible with iPhone maintains control over cellular settings, location sharing via ‘Find My’ will follow the device currently using the active number. 11 or later (or iPhone SE 2nd Gen or later). Setup requires both devices to be connected to Wi-Fi and in close proximity. Implementation of this feature requires mobile carrier support for support. In the companion eSIM infrastructure. Initial compatibility has been confirmed for United States, T-Mobile in is the United States and first confirmed carrier, with an expected monthly cost of approximately $5. In Germany, Deutsche Telekom in Germany, though it remains unclear when will offer the service through its ‘MultiSIM’ offering. While initial support is limited, other international carriers will adopt such as Verizon in the model. US and EE in the UK are expected to support the technology later this year.

Versions

  1. 2026-09-10 20:16 UTC Apple iOS 27 iPhone Handoff feature development
  2. 2026-09-10 01:12 UTC Apple iOS 27 iPhone Handoff feature development
  3. 2026-09-05 09:17 UTC Apple iOS 27 iPhone Handoff feature development

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