获取苹果设备型号如: 4s 、5s、

先引入 #import "sys/utsname.h"

<p><code>

• (NSString *)deviceString
  {
  struct utsname systemInfo;
  uname(&systemInfo);
  NSString *deviceString = [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];

  if ([deviceString isEqualToString:@"iPhone1,1"]) return @"iPhone 1G";
  if ([deviceString isEqualToString:@"iPhone1,2"]) return @"iPhone 3G";
  if ([deviceString isEqualToString:@"iPhone2,1"]) return @"iPhone 3GS";
  if ([deviceString isEqualToString:@"iPhone3,1"]) return @"iPhone 4";
  if ([deviceString isEqualToString:@"iPhone3,2"]) return @"Verizon iPhone 4";
  if ([deviceString isEqualToString:@"iPhone4,1"]) return @"iPhone 4S";
  if ([deviceString isEqualToString:@"iPhone5,1"]) return @"iPhone 5";
  if ([deviceString isEqualToString:@"iPhone5,2"]) return @"iPhone 5";
  if ([deviceString isEqualToString:@"iPhone5,3"]) return @"iPhone 5C";
  if ([deviceString isEqualToString:@"iPhone5,4"]) return @"iPhone 5C";
  if ([deviceString isEqualToString:@"iPhone6,1"]) return @"iPhone 5S";
  if ([deviceString isEqualToString:@"iPhone6,2"]) return @"iPhone 5S";
  if ([deviceString isEqualToString:@"iPhone7,1"]) return @"iPhone 6 Plus";
  if ([deviceString isEqualToString:@"iPhone7,2"]) return @"iPhone 6";
  if ([deviceString isEqualToString:@"iPhone8,1"]) return @"iPhone 6s";
  if ([deviceString isEqualToString:@"iPhone8,2"]) return @"iPhone 6s Plus";

  return deviceString;
  }
  </code></p>

<p>这个代码可以获取到具体的设备版本（已更新到iPhone 6s、iPhone 6s Plus），缺点是：采用的硬编码。具体的对应关系可以参考：https://www.theiphonewiki.com/wiki/Models
这个方法可以通过AppStore的审核，放心用吧。 </p>