To activate the ForeFlight Watch app, a paired iPhone with ForeFlight Mobile version 15.7 or later is required. If the message "Please open ForeFlight on your iPhone to activate" is displayed while ForeFlight is open, it is likely the iPhone does not have a compatible version of ForeFlight Mobile installed.
To resolve this issue, open the App Store on your iPhone and update ForeFlight Mobile EFB to the latest version.
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