Apple’s upcoming iOS 27 includes a much-anticipated “iPhone Handoff” feature that allows a single phone number to work across two iPhones. Rather than carrying a second number, the same line instantly becomes active on whichever iPhone you pick up. This dual-device identity function will initially roll out with T-Mobile in the U.S. and Telekom Germany, with Verizon and EE planning support by year-end. Network transitions and smarter handling of Wi-Fi and cellular networks are also part of the broader connectivity improvements.
T-Mobile Joins with Subscription Requirement
Although Apple’s description of iPhone Handoff notes that “carrier fees might apply” to use the new service, it’s now clear what T-Mobile’s fee will be. For customers of T-Mobile, turning on iPhone Handoff will cost $5 per month for each account. That price is separate from the iOS update itself and is not included in any existing phone plan—unless specified by the carrier.
What Europe’s Telekom Is Offering
In Germany, Deutsche Telekom is integrating iPhone Handoff into its existing MultiSIM product rather than charging for the feature on its own. MultiSIM permits using multiple devices with the same number, and the feature will be bundled under that umbrella. While certain plans already include MultiSIM at no extra cost, adding it to other plans costs €6.95 per month. So for German customers, iPhone Handoff isn’t sold separately but rather as part of telecommunications packaging.
Apple has officially confirmed that T-Mobile and Telekom Germany will support iPhone Handoff at launch. Verizon and EE are expected to follow before the end of the year, with further carriers predicted to step in later. Apple’s support page advises users to check with their carrier for any fees related to iPhone Handoff.
All of this is part of Apple’s push in iOS 27 to improve continuity. The feature joins enhancements like more fluid switching between networks and deeper integration across devices in the Apple ecosystem. By enabling a unified identity across two iPhones, Apple aims to reduce friction for users who rely on multiple devices.
What this means: for U.S. customers with T-Mobile, Apple’s new dual-iPhone option comes at an additional monthly cost. For German users, it’s often just another feature of MultiSIM. For limited budget plans or single-device users, this may feel like paying for something you don’t need.
Why it matters & what to watch: this is a turning point in how Apple and carriers cooperate on continuity features. Unlike past perks baked into phone plans, iPhone Handoff may represent a new frontier of pay-as-you-go features layered on device functionality. Watch how Verizon, EE, and other carriers price it. Also note how competition between carriers or regional regulation might force more flexibility or free tiers.
