IOS 硬件信息对应

#include <sys/types.h>

#include <sys/sysctl.h>

- (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 stringWithCString:machine encoding:NSUTF8StringEncoding];

free(machine);

return platform;
}

- (NSString *)platformString
{
NSString *platform = [self platform];

if ([platform isEqualToString:@"iPhone1,1"])   return @"iPhone1G GSM";

if ([platform isEqualToString:@"iPhone1,2"])   return @"iPhone3G GSM";

if ([platform isEqualToString:@"iPhone2,1"])   return @"iPhone3GS GSM";

if ([platform isEqualToString:@"iPhone3,1"])   return @"iPhone4 GSM";

if ([platform isEqualToString:@"iPhone3,3"])   return @"iPhone4 CDMA";

if ([platform isEqualToString:@"iPhone4,1"])   return @"iPhone4S";

if ([platform isEqualToString:@"iPhone5,1"])   return @"iPhone5";

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 @"iPad1 WiFi";

if ([platform isEqualToString:@"iPad2,1"])   return @"iPad2 WiFi";

if ([platform isEqualToString:@"iPad2,2"])   return @"iPad2 GSM";

if ([platform isEqualToString:@"iPad2,3"])   return @"iPad2 CDMAV";

if ([platform isEqualToString:@"iPad2,4"])   return @"iPad2 CDMAS";

　if ([platform isEqualToString:@"iPad2,5"])   return@"iPad mini WiFi";

if ([platform isEqualToString:@"iPad3,1"])   return @"iPad3 WiFi";

if ([platform isEqualToString:@"iPad3,2"])   return @"iPad3 GSM";

if ([platform isEqualToString:@"iPad3,3"])   return @"iPad3 CDMA";

if ([platform isEqualToString:@"i386"] || [platform isEqualToString:@"x86_64"])   return @"iPhone Simulator";

return platform;

}

转自：http://www.cnblogs.com/fengnianji/archive/2012/11/10/uidevicehardware.html