iPhone Mirroring system requirements
iPhone Mirroring can be used with only one Mac and one iPhone at a time. Your devices must meet these requirements.
Your computer is a Mac with Apple silicon or Mac with the Apple T2 Security Chip and is using macOS Sequoia 15 or later.
Your iPhone is using iOS 18 or later.
Your iPhone and Mac are signed in to the same Apple Account using two-factor authentication.
Your iPhone and Mac have Bluetooth and Wi-Fi turned on.
Your iPhone is locked and near your Mac. It can also be charging and using StandBy.
Your iPhone is not sharing its cellular connection (Personal Hotspot is not in use).
Your Mac is not sharing its internet connection or using AirPlay or Sidecar.