Verizon will charge you $10 a month for iPhone Handoff
Engadget
A regular SIM or eSIM ties a phone number to one handset. iPhone Handoff, new in iOS 27, adds a companion eSIM to a second iPhone so both are registered to the same number, with one active at a time; unlocking the other phone moves calls, messages and Find My across. Carriers set the price: Verizon will charge $10 a month, against $5 at T-Mobile.
Summary written with AI by HowTechMoves, based on reporting by Engadget.