1.手机系统版本 9.3.5

let systemVersion = UIDevice.current.systemVersion

2.手机系统 iPhone OS

let systemName = UIDevice.current.systemName

3.手机具体型号 iPhone 6S

    func iphoneType() ->String {
        
        var systemInfo = utsname()
        uname(&systemInfo)
        
        let platform = withUnsafePointer(to: &systemInfo.machine.0) { ptr in
                return String(cString: ptr)
            }
        
        if platform == "iPhone1,1" { return "iPhone 2G"}
        if platform == "iPhone1,2" { return "iPhone 3G"}
        if platform == "iPhone2,1" { return "iPhone 3GS"}
        if platform == "iPhone3,1" { return "iPhone 4"}
        if platform == "iPhone3,2" { return "iPhone 4"}
        if platform == "iPhone3,3" { return "iPhone 4"}
        if platform == "iPhone4,1" { return "iPhone 4S"}
        if platform == "iPhone5,1" { return "iPhone 5"}
        if platform == "iPhone5,2" { return "iPhone 5"}
        if platform == "iPhone5,3" { return "iPhone 5C"}
        if platform == "iPhone5,4" { return "iPhone 5C"}
        if platform == "iPhone6,1" { return "iPhone 5S"}
        if platform == "iPhone6,2" { return "iPhone 5S"}
        if platform == "iPhone7,1" { return "iPhone 6 Plus"}
        if platform == "iPhone7,2" { return "iPhone 6"}
        if platform == "iPhone8,1" { return "iPhone 6S"}
        if platform == "iPhone8,2" { return "iPhone 6S Plus"}
        if platform == "iPhone8,4" { return "iPhone SE"}
        if platform == "iPhone9,1" { return "iPhone 7"}
        if platform == "iPhone9,2" { return "iPhone 7 Plus"}
        if platform == "iPhone10,1" { return "iPhone 8"}
        if platform == "iPhone10,2" { return "iPhone 8 Plus"}
        if platform == "iPhone10,3" { return "iPhone X"}
        if platform == "iPhone10,4" { return "iPhone 8"}
        if platform == "iPhone10,5" { return "iPhone 8 Plus"}
        if platform == "iPhone10,6" { return "iPhone X"}
        
        if platform == "iPod1,1" { return "iPod Touch 1G"}
        if platform == "iPod2,1" { return "iPod Touch 2G"}
        if platform == "iPod3,1" { return "iPod Touch 3G"}
        if platform == "iPod4,1" { return "iPod Touch 4G"}
        if platform == "iPod5,1" { return "iPod Touch 5G"}
        
        if platform == "iPad1,1" { return "iPad 1"}
        if platform == "iPad2,1" { return "iPad 2"}
        if platform == "iPad2,2" { return "iPad 2"}
        if platform == "iPad2,3" { return "iPad 2"}
        if platform == "iPad2,4" { return "iPad 2"}
        if platform == "iPad2,5" { return "iPad Mini 1"}
        if platform == "iPad2,6" { return "iPad Mini 1"}
        if platform == "iPad2,7" { return "iPad Mini 1"}
        if platform == "iPad3,1" { return "iPad 3"}
        if platform == "iPad3,2" { return "iPad 3"}
        if platform == "iPad3,3" { return "iPad 3"}
        if platform == "iPad3,4" { return "iPad 4"}
        if platform == "iPad3,5" { return "iPad 4"}
        if platform == "iPad3,6" { return "iPad 4"}
        if platform == "iPad4,1" { return "iPad Air"}
        if platform == "iPad4,2" { return "iPad Air"}
        if platform == "iPad4,3" { return "iPad Air"}
        if platform == "iPad4,4" { return "iPad Mini 2"}
        if platform == "iPad4,5" { return "iPad Mini 2"}
        if platform == "iPad4,6" { return "iPad Mini 2"}
        if platform == "iPad4,7" { return "iPad Mini 3"}
        if platform == "iPad4,8" { return "iPad Mini 3"}
        if platform == "iPad4,9" { return "iPad Mini 3"}
        if platform == "iPad5,1" { return "iPad Mini 4"}
        if platform == "iPad5,2" { return "iPad Mini 4"}
        if platform == "iPad5,3" { return "iPad Air 2"}
        if platform == "iPad5,4" { return "iPad Air 2"}
        if platform == "iPad6,3" { return "iPad Pro 9.7"}
        if platform == "iPad6,4" { return "iPad Pro 9.7"}
        if platform == "iPad6,7" { return "iPad Pro 12.9"}
        if platform == "iPad6,8" { return "iPad Pro 12.9"}
        
        if platform == "i386"   { return "iPhone Simulator"}
        if platform == "x86_64" { return "iPhone Simulator"}
        
        return platform
    }