Swift 5.2.x, appareil et simulateur mis à jour jusqu'en 2020
et le tout dernier iPad Pro 11 " , iPad Air 3e génération et iPad Pro 3 génération , iPhone 11, 11 Pro et 11 Pro Max et iPhone SE 2e génération .
Cette méthode détecte le bon modèle même s'il s'agit d'un simulateur. ( Le nom exact du modèle d'appareil de simulation exécuté dans votre simulateur )
public enum Model : String {
//Simulator
case simulator     = "simulator/sandbox",
//iPod
iPod1              = "iPod 1",
iPod2              = "iPod 2",
iPod3              = "iPod 3",
iPod4              = "iPod 4",
iPod5              = "iPod 5",
//iPad
iPad2              = "iPad 2",
iPad3              = "iPad 3",
iPad4              = "iPad 4",
iPadAir            = "iPad Air ",
iPadAir2           = "iPad Air 2",
iPadAir3           = "iPad Air 3",
iPad5              = "iPad 5", //iPad 2017
iPad6              = "iPad 6", //iPad 2018
iPad7              = "iPad 7", //iPad 2019
//iPad Mini
iPadMini           = "iPad Mini",
iPadMini2          = "iPad Mini 2",
iPadMini3          = "iPad Mini 3",
iPadMini4          = "iPad Mini 4",
iPadMini5          = "iPad Mini 5",
//iPad Pro
iPadPro9_7         = "iPad Pro 9.7\"",
iPadPro10_5        = "iPad Pro 10.5\"",
iPadPro11          = "iPad Pro 11\"",
iPadPro12_9        = "iPad Pro 12.9\"",
iPadPro2_12_9      = "iPad Pro 2 12.9\"",
iPadPro3_12_9      = "iPad Pro 3 12.9\"",
//iPhone
iPhone4            = "iPhone 4",
iPhone4S           = "iPhone 4S",
iPhone5            = "iPhone 5",
iPhone5S           = "iPhone 5S",
iPhone5C           = "iPhone 5C",
iPhone6            = "iPhone 6",
iPhone6Plus        = "iPhone 6 Plus",
iPhone6S           = "iPhone 6S",
iPhone6SPlus       = "iPhone 6S Plus",
iPhoneSE           = "iPhone SE",
iPhone7            = "iPhone 7",
iPhone7Plus        = "iPhone 7 Plus",
iPhone8            = "iPhone 8",
iPhone8Plus        = "iPhone 8 Plus",
iPhoneX            = "iPhone X",
iPhoneXS           = "iPhone XS",
iPhoneXSMax        = "iPhone XS Max",
iPhoneXR           = "iPhone XR",
iPhone11           = "iPhone 11",
iPhone11Pro        = "iPhone 11 Pro",
iPhone11ProMax     = "iPhone 11 Pro Max",
iPhoneSE2          = "iPhone SE 2nd gen",
//Apple TV
AppleTV            = "Apple TV",
AppleTV_4K         = "Apple TV 4K",
unrecognized       = "?unrecognized?"
}
// #-#-#-#-#-#-#-#-#-#-#-#-#
// MARK: UIDevice extensions
// #-#-#-#-#-#-#-#-#-#-#-#-#
public extension UIDevice {
var type: Model {
    var systemInfo = utsname()
    uname(&systemInfo)
    let modelCode = withUnsafePointer(to: &systemInfo.machine) {
        $0.withMemoryRebound(to: CChar.self, capacity: 1) {
            ptr in String.init(validatingUTF8: ptr)
        }
    }
    let modelMap : [String: Model] = [
        //Simulator
        "i386"      : .simulator,
        "x86_64"    : .simulator,
        //iPod
        "iPod1,1"   : .iPod1,
        "iPod2,1"   : .iPod2,
        "iPod3,1"   : .iPod3,
        "iPod4,1"   : .iPod4,
        "iPod5,1"   : .iPod5,
        //iPad
        "iPad2,1"   : .iPad2,
        "iPad2,2"   : .iPad2,
        "iPad2,3"   : .iPad2,
        "iPad2,4"   : .iPad2,
        "iPad3,1"   : .iPad3,
        "iPad3,2"   : .iPad3,
        "iPad3,3"   : .iPad3,
        "iPad3,4"   : .iPad4,
        "iPad3,5"   : .iPad4,
        "iPad3,6"   : .iPad4,
        "iPad6,11"  : .iPad5, //iPad 2017
        "iPad6,12"  : .iPad5,
        "iPad7,5"   : .iPad6, //iPad 2018
        "iPad7,6"   : .iPad6,
        "iPad7,11"  : .iPad7, //iPad 2019
        "iPad7,12"  : .iPad7,
        //iPad Mini
        "iPad2,5"   : .iPadMini,
        "iPad2,6"   : .iPadMini,
        "iPad2,7"   : .iPadMini,
        "iPad4,4"   : .iPadMini2,
        "iPad4,5"   : .iPadMini2,
        "iPad4,6"   : .iPadMini2,
        "iPad4,7"   : .iPadMini3,
        "iPad4,8"   : .iPadMini3,
        "iPad4,9"   : .iPadMini3,
        "iPad5,1"   : .iPadMini4,
        "iPad5,2"   : .iPadMini4,
        "iPad11,1"  : .iPadMini5,
        "iPad11,2"  : .iPadMini5,
        //iPad Pro
        "iPad6,3"   : .iPadPro9_7,
        "iPad6,4"   : .iPadPro9_7,
        "iPad7,3"   : .iPadPro10_5,
        "iPad7,4"   : .iPadPro10_5,
        "iPad6,7"   : .iPadPro12_9,
        "iPad6,8"   : .iPadPro12_9,
        "iPad7,1"   : .iPadPro2_12_9,
        "iPad7,2"   : .iPadPro2_12_9,
        "iPad8,1"   : .iPadPro11,
        "iPad8,2"   : .iPadPro11,
        "iPad8,3"   : .iPadPro11,
        "iPad8,4"   : .iPadPro11,
        "iPad8,5"   : .iPadPro3_12_9,
        "iPad8,6"   : .iPadPro3_12_9,
        "iPad8,7"   : .iPadPro3_12_9,
        "iPad8,8"   : .iPadPro3_12_9,
        //iPad Air
        "iPad4,1"   : .iPadAir,
        "iPad4,2"   : .iPadAir,
        "iPad4,3"   : .iPadAir,
        "iPad5,3"   : .iPadAir2,
        "iPad5,4"   : .iPadAir2,
        "iPad11,3"  : .iPadAir3,
        "iPad11,4"  : .iPadAir3,
        //iPhone
        "iPhone3,1" : .iPhone4,
        "iPhone3,2" : .iPhone4,
        "iPhone3,3" : .iPhone4,
        "iPhone4,1" : .iPhone4S,
        "iPhone5,1" : .iPhone5,
        "iPhone5,2" : .iPhone5,
        "iPhone5,3" : .iPhone5C,
        "iPhone5,4" : .iPhone5C,
        "iPhone6,1" : .iPhone5S,
        "iPhone6,2" : .iPhone5S,
        "iPhone7,1" : .iPhone6Plus,
        "iPhone7,2" : .iPhone6,
        "iPhone8,1" : .iPhone6S,
        "iPhone8,2" : .iPhone6SPlus,
        "iPhone8,4" : .iPhoneSE,
        "iPhone9,1" : .iPhone7,
        "iPhone9,3" : .iPhone7,
        "iPhone9,2" : .iPhone7Plus,
        "iPhone9,4" : .iPhone7Plus,
        "iPhone10,1" : .iPhone8,
        "iPhone10,4" : .iPhone8,
        "iPhone10,2" : .iPhone8Plus,
        "iPhone10,5" : .iPhone8Plus,
        "iPhone10,3" : .iPhoneX,
        "iPhone10,6" : .iPhoneX,
        "iPhone11,2" : .iPhoneXS,
        "iPhone11,4" : .iPhoneXSMax,
        "iPhone11,6" : .iPhoneXSMax,
        "iPhone11,8" : .iPhoneXR,
        "iPhone12,1" : .iPhone11,
        "iPhone12,3" : .iPhone11Pro,
        "iPhone12,5" : .iPhone11ProMax,
        "iPhone12,8" : .iPhoneSE2,
        //Apple TV
        "AppleTV5,3" : .AppleTV,
        "AppleTV6,2" : .AppleTV_4K
    ]
    if let model = modelMap[String.init(validatingUTF8: modelCode!)!] {
        if model == .simulator {
            if let simModelCode = ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"] {
                if let simModel = modelMap[String.init(validatingUTF8: simModelCode)!] {
                    return simModel
                }
            }
        }
        return model
    }
    return Model.unrecognized
  }
}
Utilisation : Vous pouvez simplement obtenir le modèle d'appareil avec:
let deviceType = UIDevice().type
ou imprimez la chaîne exacte avec:
print("Running on: \(UIDevice().type)")
Output -> "iPhone X"
Un autre exemple avec des cas :
var myDefaultFontSize: CGFloat = 26.0
switch UIDevice().type {
    case .iPhoneSE, .iPhone5, .iPhone5S: print("default value")
    case .iPhone6, .iPhone7, .iPhone8, .iPhone6S, .iPhoneX: myDefaultFontSize += 4
    default: break
}
Pour les modèles d'appareils Apple, visitez: https://www.theiphonewiki.com/wiki/Models