T-Mobile will charge $5 per month for Apple’s iPhone Handoff feature, which lets users share a single phone number across two iPhones. The service launches with iOS 27 on September 14, initially supporting T-Mobile and Deutsche Telekom in Germany, with Verizon and EE adding support by year-end.
The rollout of Apple’s iPhone Handoff feature has revealed a key financial detail: T-Mobile will charge $5 per month for the service, according to multiple verified sources. The feature, which allows users to share a single phone number across two iPhones, was unveiled at Apple’s Surprise and Shine
event and is part of iOS 27, set to launch on September 14.
How iPhone Handoff Works and Its Initial Carrier Support
iPhone Handoff enables users to switch between two iPhones using the same number, with the number instantly active on whichever device is picked up. Apple’s VP of iPhone Product Marketing, Kaiann Drance, described the feature as smarter transitions between cellular and Wi-Fi networks
during the event. The service is initially available with T-Mobile and Deutsche Telekom Germany, with Verizon and EE planning to add support by the end of 2026, according to 9to5mac.

The feature is part of T-Mobile’s MultiSIM offering, which includes a €6.95 monthly fee for additional lines.
The $5 Fee and Its Context
Apple’s support page notes that carrier fees might apply,
but the exact cost was not disclosed during the event. T-Mobile confirmed the fee in its promotional materials for the iPhone 18 Pro lineup, as detailed by tmonews.com.
The $5 charge is separate from any existing plan costs, meaning users will pay this fee in addition to their regular service. This aligns with T-Mobile’s broader strategy of bundling features into subscription models, as seen with its MultiSIM and EIP Flex 36 financing options. tmonews.com highlights that the fee is part of T-Mobile’s competitive offerings, which include trade-in discounts and device financing.
Setup Process and Device Compatibility
To use iPhone Handoff, users must enable eSIM technology and ensure both devices are connected to Wi-Fi. The setup process involves placing the iPhones close together and selecting which device hosts the main eSIM. Once configured, the secondary device can receive calls, texts, and data without physical SIM swaps, as outlined by PCMag.
The feature is compatible with all iPhones running iOS 27, including models from the iPhone 11 onward and the iPhone SE (2nd Gen) or later. Apple emphasizes that the service is designed for users with secondary devices, such as work phones, to streamline transitions between personal and professional use. PCMag notes that Messages in iCloud must be enabled for seamless syncing across devices.
Industry Reaction and Future Implications
While Apple and T-Mobile highlight the convenience of iPhone Handoff, competitors like Samsung face pressure to adopt similar features. SammyGuru argues that Samsung should replicate the functionality to enhance its ecosystem, particularly for users of foldable devices like the Galaxy Z Fold 8. The publication emphasizes that switching between devices should not require eSIM transfers or carrier apps, a gap Samsung aims to address.

The rollout also raises questions about broader carrier adoption. While Verizon and EE plan to support the feature by year-end, other carriers have not yet commented. 9to5mac notes that the success of iPhone Handoff may depend on how other carriers price and promote the service. If competitors follow T-Mobile’s model, the $5 fee could become an industry standard.
What Comes Next for Users and the Market
For now, T-Mobile customers are the only U.S. users able to access iPhone Handoff, with the feature priced at $5 per month. The lack of immediate support from Verizon or AT&T leaves questions about how users without T-Mobile plans will adapt.
As Apple continues to refine its ecosystem, features like iPhone Handoff could redefine how users manage multiple devices. For now, the $5 fee and carrier restrictions remain the primary barriers to adoption. With Samsung and other manufacturers under pressure to innovate, the coming months will determine whether this feature becomes a industry benchmark or a niche offering.
