Open Terminal and run the below command
xcrun instruments -s devices
xcrun instruments -s devices
expected output:
Known Devices:
LON02759 (com.apple.instruments.devices.local)
iPhone - Simulator - iOS 7.1
iPhone Retina (3.5-inch) - Simulator - iOS 7.1
iPhone Retina (4-inch) - Simulator - iOS 7.1
iPhone Retina (4-inch 64-bit) - Simulator - iOS 7.1
iPad - Simulator - iOS 7.1
iPad Retina - Simulator - iOS 7.1
iPad Retina (64-bit) - Simulator - iOS 7.1