iOS Device + Model An iOS Category that will provide the device model that works in iOS7 for iPhones, iPads, and iPods.

UIDevice+model.h

//
//  UIDevice+model.h 
//
//  Created by Kellen Styler on 10/18/13. 
//



#import <UIKit/UIKit.h>



#define DEVICE_IPAD         @"iPad"
#define DEVICE_IPOD         @"iPod"
#define DEVICE_IPHONE       @"iPhone"
#define DEVICE_SIM          @"Simulator"



@interface UIDevice (model)


// Instance Methods
+ (BOOL) isIPhone;
+ (BOOL) isIPhone5;
+ (BOOL) isIPad;
+ (BOOL) isIPod;
+ (BOOL) isRetina;
+ (NSString *) modelType;
+ (NSString *) modelTypeFull;


@end

UIDevice+model.m

//
//  UIDevice+model.m 
//
//  Created by Kellen Styler on 10/18/13. 
//



#import "UIDevice+model.h"



@implementation UIDevice (model)



#pragma mark - Instance Methods

+ (BOOL) isIPhone
    { return UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone; }

+ (BOOL) isIPhone5
    { return UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone && [UIDevice isRetina ]; }

+ (BOOL) isIPad
    { return UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad; }

+ (BOOL) isIPod
    { return [[UIDevice modelType ] isEqualToString:DEVICE_IPOD ]; }

+ (BOOL) isRetina
    { return [[UIScreen mainScreen] respondsToSelector:@selector(scale)] && [[UIScreen mainScreen] scale] == 2.0; }

+ (NSString *) modelType
    {
        // Get deveice type
        size_t size;
        sysctlbyname( "hw.machine" , NULL , &size , NULL , 0 );
        char * answer = malloc( size );
        sysctlbyname( "hw.machine" , answer, &size , NULL , 0) ;
        NSString * result = [NSString stringWithCString:answer encoding: NSUTF8StringEncoding ];
        free( answer );
        
        // Check for iPhone
        if( [result rangeOfString:DEVICE_IPHONE ].location != NSNotFound )
            return DEVICE_IPHONE;
        else if( [result rangeOfString:DEVICE_IPAD ].location != NSNotFound )
            return DEVICE_IPAD;
        else if( [result rangeOfString:DEVICE_IPOD ].location != NSNotFound )
            return DEVICE_IPOD;
        else
            return DEVICE_SIM;
        
        return result;
    }

+ (NSString *) modelTypeFull
    {
        // Get deveice type
        size_t size;
        sysctlbyname( "hw.machine" , NULL , &size , NULL , 0 );
        char * answer = malloc( size );
        sysctlbyname( "hw.machine" , answer, &size , NULL , 0) ;
        NSString * result = [NSString stringWithCString:answer encoding: NSUTF8StringEncoding ];
        free( answer );
        
        return result;
    }

@end