Trying to remember the exact spelling and format of the ios-sim emulators can be difficult.

Run the following command to list them.

./platforms/ios/cordova/lib/list-emulator-images
#=> Output
#iPhone-4s
#iPhone-5
#iPhone-5s
#iPhone-6-Plus
#iPhone-6
#iPad-2
#iPad-Retina
#iPad-Air
#Resizable-iPhone
#Resizable-iPad

Then emulate a specific device like so

cordova emulate ios --target="iPhone-4s"

Related External Links:

• Stack Overflow - cordova-start-specific-ios-emulator-image