Swift 4或更高版本

extension UIDevice {
    var modelName: String {
        if let modelName = ProcessInfo.processInfo.environment["SIMULATOR_MODEL_IDENTIFIER"] { return modelName }
        var info = utsname()
        uname(&info)
        return String(String.UnicodeScalarView(
                   Mirror(reflecting: info.machine)
                    .children
                    .compactMap {
                        guard let value = $0.value as? Int8 else { return nil }
                        let unicode = UnicodeScalar(UInt8(value))
                        return unicode.isASCII ? unicode : nil
                    }))
    }
}

UIDevice.current.modelName   // "iPad6,4"

你可以试试这个库:http://github.com/erica/uidevice-extension/(作者Erica Sadun)。(图书馆有7-8年的历史，已经过时了)

(示例代码):

    [[UIDevice currentDevice] platformType]   // ex: UIDevice4GiPhone
    [[UIDevice currentDevice] platformString] // ex: @"iPhone 4G"

或者你可以用这个方法:

您可以使用sys/utsname.h中的uname获取设备型号。例如:

objective - c

    #import <sys/utsname.h> // import it in your header or implementation file.

    NSString* deviceName()
    {
        struct utsname systemInfo;
        uname(&systemInfo);
    
        return [NSString stringWithCString:systemInfo.machine
                                  encoding:NSUTF8StringEncoding];
    }

斯威夫特3

    extension UIDevice {
        var modelName: String {
            var systemInfo = utsname()
            uname(&systemInfo)
            let machineMirror = Mirror(reflecting: systemInfo.machine)
            let identifier = machineMirror.children.reduce("") { identifier, element in
                guard let value = element.value as? Int8, value != 0 else { return identifier }
                return identifier + String(UnicodeScalar(UInt8(value)))
            }
            return identifier
        }
    }

    print(UIDevice.current.modelName)

结果应该是:

// Output on a simulator
@"i386"      on 32-bit Simulator
@"x86_64"    on 64-bit Simulator

// Output on an iPhone
@"iPhone1,1" on iPhone
@"iPhone1,2" on iPhone 3G
@"iPhone2,1" on iPhone 3GS
@"iPhone3,1" on iPhone 4 (GSM)
@"iPhone3,2" on iPhone 4 (GSM Rev A)
@"iPhone3,3" on iPhone 4 (CDMA/Verizon/Sprint)
@"iPhone4,1" on iPhone 4S
@"iPhone5,1" on iPhone 5 (model A1428, AT&T/Canada)
@"iPhone5,2" on iPhone 5 (model A1429, everything else)
@"iPhone5,3" on iPhone 5c (model A1456, A1532 | GSM)
@"iPhone5,4" on iPhone 5c (model A1507, A1516, A1526 (China), A1529 | Global)
@"iPhone6,1" on iPhone 5s (model A1433, A1533 | GSM)
@"iPhone6,2" on iPhone 5s (model A1457, A1518, A1528 (China), A1530 | Global)
@"iPhone7,1" on iPhone 6 Plus
@"iPhone7,2" on iPhone 6
@"iPhone8,1" on iPhone 6S
@"iPhone8,2" on iPhone 6S Plus
@"iPhone8,4" on iPhone SE
@"iPhone9,1" on iPhone 7 (CDMA)
@"iPhone9,3" on iPhone 7 (GSM)
@"iPhone9,2" on iPhone 7 Plus (CDMA)
@"iPhone9,4" on iPhone 7 Plus (GSM)
@"iPhone10,1" on iPhone 8 (CDMA)
@"iPhone10,4" on iPhone 8 (GSM)
@"iPhone10,2" on iPhone 8 Plus (CDMA)
@"iPhone10,5" on iPhone 8 Plus (GSM)
@"iPhone10,3" on iPhone X (CDMA)
@"iPhone10,6" on iPhone X (GSM)
@"iPhone11,2" on iPhone XS
@"iPhone11,4" on iPhone XS Max
@"iPhone11,6" on iPhone XS Max China
@"iPhone11,8" on iPhone XR
@"iPhone12,1" on iPhone 11
@"iPhone12,3" on iPhone 11 Pro
@"iPhone12,5" on iPhone 11 Pro Max
@"iPhone12,8" on iPhone SE (2nd Gen)
@"iPhone13,1" on iPhone 12 Mini
@"iPhone13,2" on iPhone 12
@"iPhone13,3" on iPhone 12 Pro
@"iPhone13,4" on iPhone 12 Pro Max

//iPad 1
@"iPad1,1" on iPad - Wifi (model A1219)
@"iPad1,2" on iPad - Wifi + Cellular (model A1337)

//iPad 2
@"iPad2,1" - Wifi (model A1395)
@"iPad2,2" - GSM (model A1396)
@"iPad2,3" - 3G (model A1397)
@"iPad2,4" - Wifi (model A1395)

// iPad Mini
@"iPad2,5" - Wifi (model A1432)
@"iPad2,6" - Wifi + Cellular (model  A1454)
@"iPad2,7" - Wifi + Cellular (model  A1455)

//iPad 3
@"iPad3,1" - Wifi (model A1416)
@"iPad3,2" - Wifi + Cellular (model  A1403)
@"iPad3,3" - Wifi + Cellular (model  A1430)

//iPad 4
@"iPad3,4" - Wifi (model A1458)
@"iPad3,5" - Wifi + Cellular (model  A1459)
@"iPad3,6" - Wifi + Cellular (model  A1460)

//iPad AIR
@"iPad4,1" - Wifi (model A1474)
@"iPad4,2" - Wifi + Cellular (model A1475)
@"iPad4,3" - Wifi + Cellular (model A1476)

// iPad Mini 2
@"iPad4,4" - Wifi (model A1489)
@"iPad4,5" - Wifi + Cellular (model A1490)
@"iPad4,6" - Wifi + Cellular (model A1491)

// iPad Mini 3
@"iPad4,7" - Wifi (model A1599)
@"iPad4,8" - Wifi + Cellular (model A1600)
@"iPad4,9" - Wifi + Cellular (model A1601)

// iPad Mini 4
@"iPad5,1" - Wifi (model A1538)
@"iPad5,2" - Wifi + Cellular (model A1550)

//iPad AIR 2
@"iPad5,3" - Wifi (model A1566)
@"iPad5,4" - Wifi + Cellular (model A1567)

// iPad PRO 9.7"
@"iPad6,3" - Wifi (model A1673)
@"iPad6,4" - Wifi + Cellular (model A1674)
@"iPad6,4" - Wifi + Cellular (model A1675)

//iPad PRO 12.9"
@"iPad6,7" - Wifi (model A1584)
@"iPad6,8" - Wifi + Cellular (model A1652)

//iPad (5th generation)
@"iPad6,11" - Wifi (model A1822)
@"iPad6,12" - Wifi + Cellular (model A1823)
         
//iPad PRO 12.9" (2nd Gen)
@"iPad7,1" - Wifi (model A1670)
@"iPad7,2" - Wifi + Cellular (model A1671)
@"iPad7,2" - Wifi + Cellular (model A1821)
         
//iPad PRO 10.5"
@"iPad7,3" - Wifi (model A1701)
@"iPad7,4" - Wifi + Cellular (model A1709)

// iPad (6th Gen)
@"iPad7,5" - WiFi
@"iPad7,6" - WiFi + Cellular

// iPad (7th Gen)
@"iPad7,11" - WiFi
@"iPad7,12" - WiFi + Cellular

//iPad PRO 11"
@"iPad8,1" - WiFi
@"iPad8,2" - 1TB, WiFi
@"iPad8,3" - WiFi + Cellular
@"iPad8,4" - 1TB, WiFi + Cellular

//iPad PRO 12.9" (3rd Gen)
@"iPad8,5" - WiFi
@"iPad8,6" - 1TB, WiFi
@"iPad8,7" - WiFi + Cellular
@"iPad8,8" - 1TB, WiFi + Cellular

//iPad PRO 11" (2nd Gen)
@"iPad8,9" - WiFi
@"iPad8,10" - 1TB, WiFi

//iPad PRO 12.9" (4th Gen)
@"iPad8,11" - (WiFi)
@"iPad8,12" - (WiFi+Cellular)

// iPad mini 5th Gen
@"iPad11,1" - WiFi
@"iPad11,2" - Wifi  + Cellular

// iPad Air 3rd Gen
@"iPad11,3" - Wifi 
@"iPad11,4" - Wifi  + Cellular

// iPad (8th Gen)
@"iPad11,6" - iPad 8th Gen (WiFi)
@"iPad11,7" - iPad 8th Gen (WiFi+Cellular)

// iPad Air 4th Gen
@"iPad13,1" - iPad air 4th Gen (WiFi)
@"iPad13,2" - iPad air 4th Gen (WiFi+Cellular)

//iPod Touch
@"iPod1,1"   on iPod Touch
@"iPod2,1"   on iPod Touch Second Generation
@"iPod3,1"   on iPod Touch Third Generation
@"iPod4,1"   on iPod Touch Fourth Generation
@"iPod5,1"   on iPod Touch 5th Generation
@"iPod7,1"   on iPod Touch 6th Generation
@"iPod9,1"   on iPod Touch 7th Generation

// Apple Watch
@"Watch1,1" on Apple Watch 38mm case
@"Watch1,2" on Apple Watch 38mm case
@"Watch2,6" on Apple Watch Series 1 38mm case
@"Watch2,7" on Apple Watch Series 1 42mm case
@"Watch2,3" on Apple Watch Series 2 38mm case
@"Watch2,4" on Apple Watch Series 2 42mm case
@"Watch3,1" on Apple Watch Series 3 38mm case (GPS+Cellular)
@"Watch3,2" on Apple Watch Series 3 42mm case (GPS+Cellular)
@"Watch3,3" on Apple Watch Series 3 38mm case (GPS)
@"Watch3,4" on Apple Watch Series 3 42mm case (GPS)
@"Watch4,1" on Apple Watch Series 4 40mm case (GPS)
@"Watch4,2" on Apple Watch Series 4 44mm case (GPS)
@"Watch4,3" on Apple Watch Series 4 40mm case (GPS+Cellular)
@"Watch4,4" on Apple Watch Series 4 44mm case (GPS+Cellular)
@"Watch5,1" on Apple Watch Series 5 40mm case (GPS)
@"Watch5,2" on Apple Watch Series 5 44mm case (GPS)
@"Watch5,3" on Apple Watch Series 5 40mm case (GPS+Cellular)
@"Watch5,4" on Apple Watch Series 5 44mm case (GPS+Cellular)
@"Watch5,9" on Apple Watch SE 40mm case (GPS)
@"Watch5,10" on Apple Watch SE 44mm case (GPS)
@"Watch5,11" on Apple Watch SE 40mm case (GPS+Cellular)
@"Watch5,12" on Apple Watch SE 44mm case (GPS+Cellular)
@"Watch6,1" on Apple Watch Series 6 40mm case (GPS)
@"Watch6,2" on Apple Watch Series 6 44mm case (GPS)
@"Watch6,3" on Apple Watch Series 6 40mm case (GPS+Cellular)
@"Watch6,4" on Apple Watch Series 6 44mm case (GPS+Cellular)

为了节省别人的时间。 因为接受，必须投票回答建议库使用私人API和我的应用程序被拒绝，因为uidevice-extension就在昨天! 我切换到GBDeviceInfo库，安装为pod以及，现在它看起来不错，维护和更新到最新的设备。

下面是它的代码(代码可能不包含所有设备的字符串，我和其他人在GitHub上维护相同的代码，所以请从那里获取最新的代码)

Objective-C: GitHub/DeviceUtil

吉hub /恶魔大师

#include <sys/types.h>
#include <sys/sysctl.h>

- (NSString*)hardwareDescription {
    NSString *hardware = [self hardwareString];
    if ([hardware isEqualToString:@"iPhone1,1"]) return @"iPhone 2G";
    if ([hardware isEqualToString:@"iPhone1,2"]) return @"iPhone 3G";
    if ([hardware isEqualToString:@"iPhone3,1"]) return @"iPhone 4";
    if ([hardware isEqualToString:@"iPhone4,1"]) return @"iPhone 4S";
    if ([hardware isEqualToString:@"iPhone5,1"]) return @"iPhone 5";
    if ([hardware isEqualToString:@"iPod1,1"]) return @"iPodTouch 1G";
    if ([hardware isEqualToString:@"iPod2,1"]) return @"iPodTouch 2G";
    if ([hardware isEqualToString:@"iPad1,1"]) return @"iPad";
    if ([hardware isEqualToString:@"iPad2,6"]) return @"iPad Mini";
    if ([hardware isEqualToString:@"iPad4,1"]) return @"iPad Air WIFI";
    //there are lots of other strings too, checkout the github repo
    //link is given at the top of this answer

    if ([hardware isEqualToString:@"i386"]) return @"Simulator";
    if ([hardware isEqualToString:@"x86_64"]) return @"Simulator";

    return nil;
}

- (NSString*)hardwareString {
    size_t size = 100;
    char *hw_machine = malloc(size);
    int name[] = {CTL_HW,HW_MACHINE};
    sysctl(name, 2, hw_machine, &size, NULL, 0);
    NSString *hardware = [NSString stringWithUTF8String:hw_machine];
    free(hw_machine);
    return hardware;
}

不使用镜像也可以在Swift中获取设备名称。Swift可以在需要的地方自动将内容转换为指针。其实很简单:

/// Returns "iPhone1,1", etc.
var deviceName: String {
    var sysinfo = utsname()
    uname(&sysinfo)
    return String(cString: &sysinfo.machine.0)
}

(向这个被低估的答案致敬https://stackoverflow.com/a/43599474/843454)

一个从NSString描述中脱离的类别

通常，在整个代码中避免任意的字符串比较是可取的。最好在一个地方更新字符串，并在应用程序中隐藏神奇的字符串。为此，我在UIDevice上提供了一个类别。

对于我的特定需求，我需要知道我正在使用的设备，而不需要知道可以通过其他方式轻松检索的网络功能的细节。因此，您将发现一个比不断增长的设备列表更粗粒度的枚举。

更新就是将设备添加到枚举和查找表中。

UIDevice + NTNUExtensions.h

typedef NS_ENUM(NSUInteger, NTNUDeviceType) {
    DeviceAppleUnknown,
    DeviceAppleSimulator,
    DeviceAppleiPhone,
    DeviceAppleiPhone3G,
    DeviceAppleiPhone3GS,
    DeviceAppleiPhone4,
    DeviceAppleiPhone4S,
    DeviceAppleiPhone5,
    DeviceAppleiPhone5C,
    DeviceAppleiPhone5S,
    DeviceAppleiPhone6,
    DeviceAppleiPhone6_Plus,
    DeviceAppleiPhone6S,
    DeviceAppleiPhone6S_Plus,
    DeviceAppleiPhoneSE,
    DeviceAppleiPhone7,
    DeviceAppleiPhone7_Plus,
    DeviceAppleiPodTouch,
    DeviceAppleiPodTouch2G,
    DeviceAppleiPodTouch3G,
    DeviceAppleiPodTouch4G,
    DeviceAppleiPad,
    DeviceAppleiPad2,
    DeviceAppleiPad3G,
    DeviceAppleiPad4G,
    DeviceAppleiPad5G_Air,
    DeviceAppleiPadMini,
    DeviceAppleiPadMini2G,
    DeviceAppleiPadPro12,
    DeviceAppleiPadPro9
};



@interface UIDevice (NTNUExtensions)

- (NSString *)ntnu_deviceDescription;
- (NTNUDeviceType)ntnu_deviceType;

@end

UIDevice + NTNUExtensions.m

#import <sys/utsname.h>
#import "UIDevice+NTNUExtensions.h"

@implementation UIDevice (NTNUExtensions)

- (NSString *)ntnu_deviceDescription
{
    struct utsname systemInfo;
    uname(&systemInfo);

    return [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];
}

- (NTNUDeviceType)ntnu_deviceType
{
    NSNumber *deviceType = [[self ntnu_deviceTypeLookupTable] objectForKey:[self ntnu_deviceDescription]];
    return [deviceType unsignedIntegerValue];
}

- (NSDictionary *)ntnu_deviceTypeLookupTable
{
    return @{
             @"i386": @(DeviceAppleSimulator),
             @"x86_64": @(DeviceAppleSimulator),
             @"iPod1,1": @(DeviceAppleiPodTouch),
             @"iPod2,1": @(DeviceAppleiPodTouch2G),
             @"iPod3,1": @(DeviceAppleiPodTouch3G),
             @"iPod4,1": @(DeviceAppleiPodTouch4G),
             @"iPhone1,1": @(DeviceAppleiPhone),
             @"iPhone1,2": @(DeviceAppleiPhone3G),
             @"iPhone2,1": @(DeviceAppleiPhone3GS),
             @"iPhone3,1": @(DeviceAppleiPhone4),
             @"iPhone3,3": @(DeviceAppleiPhone4),
             @"iPhone4,1": @(DeviceAppleiPhone4S),
             @"iPhone5,1": @(DeviceAppleiPhone5),
             @"iPhone5,2": @(DeviceAppleiPhone5),
             @"iPhone5,3": @(DeviceAppleiPhone5C),
             @"iPhone5,4": @(DeviceAppleiPhone5C),
             @"iPhone6,1": @(DeviceAppleiPhone5S),
             @"iPhone6,2": @(DeviceAppleiPhone5S),
             @"iPhone7,1": @(DeviceAppleiPhone6_Plus),
             @"iPhone7,2": @(DeviceAppleiPhone6),
             @"iPhone8,1" :@(DeviceAppleiPhone6S),
             @"iPhone8,2" :@(DeviceAppleiPhone6S_Plus),
             @"iPhone8,4" :@(DeviceAppleiPhoneSE),
             @"iPhone9,1" :@(DeviceAppleiPhone7),
             @"iPhone9,3" :@(DeviceAppleiPhone7),
             @"iPhone9,2" :@(DeviceAppleiPhone7_Plus),
             @"iPhone9,4" :@(DeviceAppleiPhone7_Plus),
             @"iPad1,1": @(DeviceAppleiPad),
             @"iPad2,1": @(DeviceAppleiPad2),
             @"iPad3,1": @(DeviceAppleiPad3G),
             @"iPad3,4": @(DeviceAppleiPad4G),
             @"iPad2,5": @(DeviceAppleiPadMini),
             @"iPad4,1": @(DeviceAppleiPad5G_Air),
             @"iPad4,2": @(DeviceAppleiPad5G_Air),
             @"iPad4,4": @(DeviceAppleiPadMini2G),
             @"iPad4,5": @(DeviceAppleiPadMini2G),
             @"iPad4,7":@(DeviceAppleiPadMini),
             @"iPad6,7":@(DeviceAppleiPadPro12),
             @"iPad6,8":@(DeviceAppleiPadPro12),
             @"iPad6,3":@(DeviceAppleiPadPro9),
             @"iPad6,4":@(DeviceAppleiPadPro9)
             };
}

@end