一个简单的功能，但是可能每次苹果发布新品都要用上，先上代码：

#import <sys/utsname.h>//要导入头文件
-(NSString  *) iphoneType {
    struct utsname systemInfo;
    uname(&systemInfo);
    NSString *platform = [NSString stringWithCString:systemInfo.machine encoding:NSASCIIStringEncoding];
    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";
    if ([platform isEqualToString:@"iPhone4,1"]) return @"iPhone 4S";
    if ([platform isEqualToString:@"iPhone5,1"]) return @"iPhone 5";
    if ([platform isEqualToString:@"iPhone5,2"]) return @"iPhone 5";
    if ([platform isEqualToString:@"iPhone5,3"]) return @"iPhone 5c";
    if ([platform isEqualToString:@"iPhone5,4"]) return @"iPhone 5c";
    if ([platform isEqualToString:@"iPhone6,1"]) return @"iPhone 5s";
    if ([platform isEqualToString:@"iPhone6,2"]) return @"iPhone 5s";
    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";
    if ([platform isEqualToString:@"iPhone8,2"]) return @"iPhone 6s Plus";
    if ([platform isEqualToString:@"iPhone8,4"]) return @"iPhone SE";
    if ([platform isEqualToString:@"iPhone9,1"]) return @"iPhone 7";
    if ([platform isEqualToString:@"iPhone9,2"]) return @"iPhone 7 Plus";
    if([platform isEqualToString:@"iPhone10,1"]) return @"iPhone 8";
    if([platform isEqualToString:@"iPhone10,4"]) return @"iPhone 8";
    if([platform isEqualToString:@"iPhone10,2"]) return @"iPhone 8 Plus";
    if([platform isEqualToString:@"iPhone10,5"]) return @"iPhone 8 Plus";
    if([platform isEqualToString:@"iPhone10,3"]) return @"iPhone X";
    if([platform isEqualToString:@"iPhone10,6"]) return @"iPhone X";
    if ([platform isEqualToString:@"iPhone11,8"]) return @"iPhone XR";
    if ([platform isEqualToString:@"iPhone11,2"]) return @"iPhone XS";
    if ([platform isEqualToString:@"iPhone11,6"]) return @"iPhone XS Max";
    if ([platform isEqualToString:@"iPhone11,4"]) return @"iPhone XS Max";
    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";
    if ([platform isEqualToString:@"iPhone12,8"]) return @"iPhone SE(2nd generation)";
    if ([platform isEqualToString:@"iPhone13,1"]) return @"iPhone 12 mini";
    if ([platform isEqualToString:@"iPhone13,2"]) return @"iPhone 12";
    if ([platform isEqualToString:@"iPhone13,3"]) return @"iPhone 12 Pro";  
    if ([platform isEqualToString:@"iPhone13,4"]) return @"iPhone 12 Pro Max";
    if ([platform isEqualToString:@"iPhone14,4"]) return @"iPhone 13 mini";
    if ([platform isEqualToString:@"iPhone14,5"]) return @"iPhone 13";
    if ([platform isEqualToString:@"iPhone14,2"]) return @"iPhone 13 Pro";
    if ([platform isEqualToString:@"iPhone14,3"]) return @"iPhone 13 Pro Max";
    if ([platform isEqualToString:@"iPhone14,6"]) return @"iPhone SE (3rd generation)";
    if ([platform isEqualToString:@"iPhone14,7"]) return @"iPhone 14";
    if ([platform isEqualToString:@"iPhone14,8"]) return @"iPhone 14 Plus";
    if ([platform isEqualToString:@"iPhone15,2"]) return @"iPhone 14 Pro";
    if ([platform isEqualToString:@"iPhone15,3"]) return @"iPhone 14 Pro Max";
    if ([platform isEqualToString:@"iPhone15,4"]) return @"iPhone 15";
    if ([platform isEqualToString:@"iPhone15,5"]) return @"iPhone 15 Plus";
    if ([platform isEqualToString:@"iPhone16,1"]) return @"iPhone 15 Pro";
    if ([platform isEqualToString:@"iPhone16,2"]) return @"iPhone 15 Pro Max";  
    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:@"iPod5,1"]) return @"iPod Touch 5G";
    if ([platform isEqualToString:@"iPad1,1"]) return @"iPad 1G";
    if ([platform isEqualToString:@"iPad2,1"]) return @"iPad 2";
    if ([platform isEqualToString:@"iPad2,2"]) return @"iPad 2";
    if ([platform isEqualToString:@"iPad2,3"]) return @"iPad 2";
    if ([platform isEqualToString:@"iPad2,4"]) return @"iPad 2";
    if ([platform isEqualToString:@"iPad2,5"]) return @"iPad Mini 1G";
    if ([platform isEqualToString:@"iPad2,6"]) return @"iPad Mini 1G";
    if ([platform isEqualToString:@"iPad2,7"]) return @"iPad Mini 1G";
    if ([platform isEqualToString:@"iPad3,1"]) return @"iPad 3";
    if ([platform isEqualToString:@"iPad3,2"]) return @"iPad 3";
    if ([platform isEqualToString:@"iPad3,3"]) return @"iPad 3";
    if ([platform isEqualToString:@"iPad3,4"]) return @"iPad 4";
    if ([platform isEqualToString:@"iPad3,5"]) return @"iPad 4";
    if ([platform isEqualToString:@"iPad3,6"]) return @"iPad 4";
    if ([platform isEqualToString:@"iPad4,1"]) return @"iPad Air";
    if ([platform isEqualToString:@"iPad4,2"]) return @"iPad Air";
    if ([platform isEqualToString:@"iPad4,3"]) return @"iPad Air";
    if ([platform isEqualToString:@"iPad4,4"]) return @"iPad Mini 2G";
    if ([platform isEqualToString:@"iPad4,5"]) return @"iPad Mini 2G";
    if ([platform isEqualToString:@"iPad4,6"]) return @"iPad Mini 2G";
    if ([platform isEqualToString:@"i386"]) return @"iPhone Simulator";
    if ([platform isEqualToString:@"x86_64"]) return @"iPhone Simulator";
    return platform;
 }

授人以鱼不如授人以渔:
苹果全设备型号编码对照表