Convert device.name to meaningfull model name

iOSmodelConverter.js

/*
With PhoneGap's device plugin, using device.name yields 
something like "iPhone6,1" which is an identifier, not a 
name. This function converts it to a meaningfull model name.

Example:
var model = getiOSModelName(device.name);
model = "iPhone 5s"
*/

function getiOSModelName(identifier) {
  var x = identifier.search(/x/);
  if (x == 0) {
    return 'iOS Simulator';
  } else {
    var n = identifier.search(/\d/);
    var model = identifier.slice(0, n);
    var id = identifier.slice(n);
    var models = {
      iPad: {
        '1,1': 'iPad 1G',
        '2,1': 'iPad 2',
        '2,2': 'iPad 2',
        '2,3': 'iPad 2',
        '2,4': 'iPad 2',
        '2,5': 'iPad Mini 1G',
        '2,6': 'iPad Mini 1G',
        '2,7': 'iPad Mini 1G',
        '3,1': 'iPad 3',
        '3,2': 'iPad 3',
        '3,3': 'iPad 3',
        '3,4': 'iPad 4',
        '3,5': 'iPad 4',
        '3,6': 'iPad 4',
        '4,1': 'iPad Air',
        '4,2': 'iPad Air',
        '4,3': 'iPad Air',
        '4,4': 'iPad Mini 2G',
        '4,5': 'iPad Mini 2G',
        '4,6': 'iPad Mini 2G'
      },
      iPhone: {
        '1,1': 'iPhone 2G',
        '1,2': 'iPhone 3G',
        '2,1': 'iPhone 3GS',
        '3,1': 'iPhone 4',
        '3,2': 'iPhone 4',
        '3,3': 'iPhone 4',
        '4,1': 'iPhone 4S',
        '5,1': 'iPhone 5',
        '5,2': 'iPhone 5',
        '5,3': 'iPhone 5c',
        '5,4': 'iPhone 5c',
        '6,1': 'iPhone 5s',
        '6,2': 'iPhone 5s',
        '7,1': 'iPhone 6 Plus',
        '7,2': 'iPhone 6'
      },
      iPod: {
        '1,1': 'iPod touch 1G',
        '2,1': 'iPod touch 2G',
        '3,1': 'iPod touch 3G',
        '4,1': 'iPod touch 4G',
        '5,1': 'iPod touch 5G'
      }
    }
    return models[model][id];
  }
}