A Boolean indicating whether the current iPhone is paired to an Apple Watch.
- iOS 9.0+
The value of this property is
true when the iPhone is paired to an Apple Watch or
false when it is not.
The value in this property is valid only for a configured session that has been activated successfully. If the
activation property is available, its value must be
WCSession. When the session becomes inactive or deactivated, you should ignore the value in this property.