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Created October 28, 2011 19:33
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UIDeviceHardware - Determine iOS device being used
// UIDeviceHardware.h
// Used to determine EXACT version of device software is running on.
#import <Foundation/Foundation.h>
@interface UIDeviceHardware : NSObject
- (NSString *) platform;
- (NSString *) platformString;
// UIDeviceHardware.m
// Used to determine EXACT version of device software is running on.
#import "UIDeviceHardware.h"
#include <sys/types.h>
#include <sys/sysctl.h>
@implementation UIDeviceHardware
- (NSString *) platform{
size_t size;
sysctlbyname("hw.machine", NULL, &size, NULL, 0);
char *machine = malloc(size);
sysctlbyname("hw.machine", machine, &size, NULL, 0);
NSString *platform = [NSString stringWithUTF8String:machine];
return platform;
- (NSString *) platformString{
NSString *platform = [self platform];
if ([platform isEqualToString:@"iPhone1,1"]) return @"iPhone 1G";
if ([platform isEqualToString:@"iPhone1,2"]) return @"iPhone 3G";
if ([platform isEqualToString:@"iPhone2,1"]) return @"iPhone 3GS";
if ([platform isEqualToString:@"iPhone3,1"]) return @"iPhone 4";
if ([platform isEqualToString:@"iPhone3,3"]) return @"Verizon iPhone 4";
if ([platform isEqualToString:@"iPhone4,1"]) return @"iPhone 4S";
if ([platform isEqualToString:@"iPod1,1"]) return @"iPod Touch 1G";
if ([platform isEqualToString:@"iPod2,1"]) return @"iPod Touch 2G";
if ([platform isEqualToString:@"iPod3,1"]) return @"iPod Touch 3G";
if ([platform isEqualToString:@"iPod4,1"]) return @"iPod Touch 4G";
if ([platform isEqualToString:@"iPad1,1"]) return @"iPad";
if ([platform isEqualToString:@"iPad2,1"]) return @"iPad 2 (WiFi)";
if ([platform isEqualToString:@"iPad2,2"]) return @"iPad 2 (GSM)";
if ([platform isEqualToString:@"iPad2,3"]) return @"iPad 2 (CDMA)";
if ([platform isEqualToString:@"i386"]) return @"Simulator";
if ([platform isEqualToString:@"x86_64"]) return @"Simulator";
return platform;
UIDeviceHardware *h=[[UIDeviceHardware alloc] init];
[self setDeviceModel:[h platformString]];
[h release];
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I performed some benchmarks, to test class methods vs instantiation and to check out @mattdipasquale comment re sysctl.

I used various implementations of my category. You can see I've added a few more methods to return a bit more info.

My benchmarking code was:

extern uint64_t dispatch_benchmark(size_t count, void (^block)(void));
size_t const iterations = 10000;
uint64_t tt = dispatch_benchmark(iterations, ^{
	@autoreleasepool {
                HKWUIDeviceHardware *h=[[HKWUIDeviceHardware alloc] init];
                 _deviceType = [h platformString];
		_isIpadOneOrTwo = [h isIpadOneOrTwo];
		_isSexSeven = [h isSixOrSeven];
		_isPlus = [h isPlus];
NSLog(@"HKWUIDeviceHardware Avg. Runtime: %llu ns", tt);

Results - Simulator

Test Avg. Runtime (ns)
This gist 36580
This gist with sysctl 26186
Class methods 36338
Class methods with sysctl 25836
My version 9876

Results - iPhone 7

Test Avg. Runtime (ns)
This gist 18210
This gist with sysctl 17438
Class methods 25550
Class methods with sysctl 21496
My version 4563

Now, my implementations of the class method version may not have totally optimised, but they didn't have my extra methods either.

Taking the initial implementation vs my implementation:

Simulator: 36580/9876 = 3.70x faster
iPhone 7: 18210/4563 = 3.99x faster

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Adlai-Holler commented Aug 17, 2017

The faster implementation (if your machine name length is limited) is this, which saves a heap allocation and caches the result.

static NSString *platform;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
    int key[] = { CTL_HW, HW_MACHINE };

    static size_t const maxSize = 32;
    size_t size = maxSize;
    char machine[maxSize];
    __unused int result = sysctl(key, 2, machine, &size, NULL, 0);
    NSAssert(result == noErr, @"Failed to get platform name. Error: %s", strerror(result));

    platform = @(machine);

return platform;

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icethawless commented Jun 20, 2019

The updated list used in my game, add iPhone 8, iPhone X, iPad Pro 11 and more devices.

If any more devices Apple publishes, just check this link:

    if ([platform isEqualToString:@"iPhone1,1"])    return "iPhone 2G";
    if ([platform isEqualToString:@"iPhone1,2"])    return "iPhone 3G";
    if ([platform isEqualToString:@"iPhone2,1"])    return "iPhone 3GS";
    if ([platform isEqualToString:@"iPhone3,1"])    return "iPhone 4";
    if ([platform isEqualToString:@"iPhone3,2"])    return "iPhone 4";
    if ([platform isEqualToString:@"iPhone3,3"])    return "iPhone 4 (CDMA)";
    if ([platform isEqualToString:@"iPhone4,1"])    return "iPhone 4S";
    if ([platform isEqualToString:@"iPhone5,1"])    return "iPhone 5";
    if ([platform isEqualToString:@"iPhone5,2"])    return "iPhone 5 (GSM+CDMA)";
    if ([platform isEqualToString:@"iPhone5,3"])    return "iPhone 5c (GSM)";
    if ([platform isEqualToString:@"iPhone5,4"])    return "iPhone 5c (GSM+CDMA)";
    if ([platform isEqualToString:@"iPhone6,1"])    return "iPhone 5s (GSM)";
    if ([platform isEqualToString:@"iPhone6,2"])    return "iPhone 5s (GSM+CDMA)";
    if ([platform isEqualToString:@"iPhone7,1"])    return "iPhone 6 Plus";
    if ([platform isEqualToString:@"iPhone7,2"])    return "iPhone 6";
    if ([platform isEqualToString:@"iPhone8,1"])    return "iPhone 6s Plus";
    if ([platform isEqualToString:@"iPhone8,2"])    return "iPhone 6s";
    if ([platform isEqualToString:@"iPhone9,1"])    return "iPhone 7";
    if ([platform isEqualToString:@"iPhone9,2"])    return "iPhone 7 Plus";
    if ([platform isEqualToString:@"iPhone9,3"])    return "iPhone 7";
    if ([platform isEqualToString:@"iPhone9,4"])    return "iPhone 7 Plus";
    if ([platform isEqualToString:@"iPhone8,4"])    return "iPhone SE";
    if ([platform isEqualToString:@"iPhone10,1"] ||
        [platform isEqualToString:@"iPhone10,4"])   return "iPhone 8";
    if ([platform isEqualToString:@"iPhone10,2"] ||
        [platform isEqualToString:@"iPhone10,5"])   return "iPhone 8 Plus";
    if ([platform isEqualToString:@"iPhone10,3"] ||
        [platform isEqualToString:@"iPhone10,6"])   return "iPhone X";
    if ([platform isEqualToString:@"iPhone11,2"])   return "iPhone XS";
    if ([platform isEqualToString:@"iPhone11,4"] ||
        [platform isEqualToString:@"iPhone11,6"])   return "iPhone XS Max";
    if ([platform isEqualToString:@"iPhone11,8"])   return "iPhone XR";
    if ([platform isEqualToString:@"iPod1,1"])      return "iPod Touch (1 Gen)";
    if ([platform isEqualToString:@"iPod2,1"])      return "iPod Touch (2 Gen)";
    if ([platform isEqualToString:@"iPod3,1"])      return "iPod Touch (3 Gen)";
    if ([platform isEqualToString:@"iPod4,1"])      return "iPod Touch (4 Gen)";
    if ([platform isEqualToString:@"iPod5,1"])      return "iPod Touch (5 Gen)";
    if ([platform isEqualToString:@"iPad1,1"])      return "iPad";
    if ([platform isEqualToString:@"iPad1,2"])      return "iPad 3G";
    if ([platform isEqualToString:@"iPad2,1"])      return "iPad 2 (WiFi)";
    if ([platform isEqualToString:@"iPad2,2"])      return "iPad 2";
    if ([platform isEqualToString:@"iPad2,3"])      return "iPad 2 (CDMA)";
    if ([platform isEqualToString:@"iPad2,4"])      return "iPad 2";
    if ([platform isEqualToString:@"iPad2,5"])      return "iPad Mini (WiFi)";
    if ([platform isEqualToString:@"iPad2,6"])      return "iPad Mini";
    if ([platform isEqualToString:@"iPad2,7"])      return "iPad Mini (GSM+CDMA)";
    if ([platform isEqualToString:@"iPad3,1"])      return "iPad 3 (WiFi)";
    if ([platform isEqualToString:@"iPad3,2"])      return "iPad 3 (GSM+CDMA)";
    if ([platform isEqualToString:@"iPad3,3"])      return "iPad 3";
    if ([platform isEqualToString:@"iPad3,4"])      return "iPad 4 (WiFi)";
    if ([platform isEqualToString:@"iPad3,5"])      return "iPad 4";
    if ([platform isEqualToString:@"iPad3,6"])      return "iPad 4 (GSM+CDMA)";
    if ([platform isEqualToString:@"iPad4,1"])      return "iPad Air (WiFi)";
    if ([platform isEqualToString:@"iPad4,2"])      return "iPad Air (Cellular)";
    if ([platform isEqualToString:@"iPad4,3"])      return "iPad Air";
    if ([platform isEqualToString:@"iPad4,4"])      return "iPad Mini (Wifi)";
    if ([platform isEqualToString:@"iPad4,5"])      return "iPad Mini (Cellular)";
    if ([platform isEqualToString:@"iPad4,6"])      return "iPad Mini 2 (Rev)";
    if ([platform isEqualToString:@"iPad4,7"])      return "iPad Mini 3 (WiFi)";
    if ([platform isEqualToString:@"iPad4,8"])      return "iPad Mini 3 (A1600)";
    if ([platform isEqualToString:@"iPad4,9"])      return "iPad Mini 3 (A1601)";
    if ([platform isEqualToString:@"iPad5,1"] ||
        [platform isEqualToString:@"iPad5,2"])      return "iPad Mini 4";
    if ([platform isEqualToString:@"iPad11,1"] ||
        [platform isEqualToString:@"iPad11,2"])     return "iPad Mini 5";
    if ([platform isEqualToString:@"iPad11,4"] ||
        [platform isEqualToString:@"iPad11,5"])     return "iPad Air (3rd generation)";
    if ([platform isEqualToString:@"iPad5,3"])      return "iPad Air 2 (WiFi)";
    if ([platform isEqualToString:@"iPad5,4"])      return "iPad Air 2 (Cellular)";

    if ([platform isEqualToString:@"iPad6,3"] ||
        [platform isEqualToString:@"iPad6,4"])      return "iPad Pro (9.7-inch)";
    if ([platform isEqualToString:@"iPad6,7"] ||
        [platform isEqualToString:@"iPad6,8"])      return "iPad Pro (12.9-inch)";
    if ([platform isEqualToString:@"iPad7,1"] ||
        [platform isEqualToString:@"iPad7,2"])      return "iPad Pro (12.9-inch) (2nd generation)";
    if ([platform isEqualToString:@"iPad7,3"] ||
        [platform isEqualToString:@"iPad7,4"])      return "iPad Pro (10.5-inch)";
    if ([platform isEqualToString:@"iPad8,1"] ||
        [platform isEqualToString:@"iPad8,2"] ||
        [platform isEqualToString:@"iPad8,3"] ||
        [platform isEqualToString:@"iPad8,4"])      return "iPad Pro (11-inch)";
    if ([platform isEqualToString:@"iPad8,5"] ||
        [platform isEqualToString:@"iPad8,6"] ||
        [platform isEqualToString:@"iPad8,7"] ||
        [platform isEqualToString:@"iPad8,8"])      return "iPad Pro (12.9-inch) (3rd generation)";
    if ([platform isEqualToString:@"i386"] || [platform isEqualToString:@"x86_64"])
        return "iPhone Simulator";

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littledogboy2 commented Nov 19, 2019

if ([platform isEqualToString:@"iPhone12,1"])   return @"iPhone 11";
if ([platform isEqualToString:@"iPhone12,3"])   return @"iPhone 11 Pro";
if ([platform isEqualToString:@"iPhone12,5"])   return @"iPhone 11 Pro Max";

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