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    <p>If you want check it <strong>Programmatically</strong> :</p> <p>For checking <strong>Retina (3.5/4 inch Screen) or Non-Retina</strong> </p> <pre><code>if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)]) { if ([[UIScreen mainScreen] scale] == 2.0) { if([UIScreen mainScreen].bounds.size.height == 568){ // iPhone retina-4 inch } else{ // iPhone retina-3.5 inch } } else { // not retina display } </code></pre> <p><strong>Update:</strong> </p> <p>checking <strong>ios8 or ios 7</strong> </p> <pre><code>NSOperatingSystemVersion ios8_0_0 = (NSOperatingSystemVersion){8, 0, 0}; if ([[NSProcessInfo processInfo] isOperatingSystemAtLeastVersion:ios8_0_0]) { // iOS 8 stuff } else { // iOS 7 and below stuff } </code></pre> <p>For checking <strong>All retina iPhone</strong> Programmatically:</p> <pre><code>if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)]) { if ([[UIScreen mainScreen] scale] == 2.0) { if([UIScreen mainScreen].bounds.size.height == 667){ // iPhone retina-4.7 inch(iPhone 6) } else if([UIScreen mainScreen].bounds.size.height == 568){ // iPhone retina-4 inch(iPhone 5 or 5s) } else{ // iPhone retina-3.5 inch(iPhone 4s) } } else if ([[UIScreen mainScreen] scale] == 3.0) { //if you want to detect the iPhone 6+ only if([UIScreen mainScreen].bounds.size.height == 736.0){ //iPhone retina-5.5 inch screen(iPhone 6 plus) } //iPhone retina-5.5 inch screen(iPhone 6 plus) } } </code></pre> <p>Also check this</p> <pre><code>#define IS_IPHONE_5 (IS_IPHONE &amp;&amp; [[UIScreen mainScreen] bounds].size.height == 568.0) #define IS_IPHONE_6 (IS_IPHONE &amp;&amp; [[UIScreen mainScreen] bounds].size.height == 667.0) #define IS_IPHONE_6_PLUS (IS_IPHONE &amp;&amp; [[UIScreen mainScreen] bounds].size.height == 736.0) </code></pre> <p><strong>FOR Swift 3.0</strong></p> <pre><code>if UIDevice().userInterfaceIdiom == .Phone { switch UIScreen.mainScreen().nativeBounds.height { case 480: print("iPhone Classic") case 960: print("iPhone 4 or 4S") case 1136: print("iPhone 5 or 5S or 5C") case 1334: print("iPhone 6 or 6S or 7") case 1920: print("iPhone 6+ or 6S+ or 7+") default: print("unknown") } } </code></pre> <p>You can also extend UIDevice as follow:</p> <pre><code>extension UIDevice { var iPhone: Bool { return UIDevice().userInterfaceIdiom == .Phone } enum ScreenType: String { case iPhone4 case iPhone5 case iPhone6/iPhone7 case iPhone6Plus/iPhone6splus/iPhone7plus case unknown } var screenType: ScreenType { guard iPhone else { return .unknown } switch UIScreen.mainScreen().nativeBounds.height { case 960: return .iPhone4 case 1136: return .iPhone5 case 1334: return .iPhone6/iPhone7 case 1920: return .iPhone6Plus/iPhone6splus/iPhone7plus default: return .unknown } } } </code></pre> <hr> <p>edit/update <strong>Xcode 8.1 • Swift 3.0.1</strong></p> <pre><code>extension UIDevice { var iPhone: Bool { return UIDevice().userInterfaceIdiom == .phone } enum ScreenType: String { case iPhone4 case iPhone5 case iPhone6/iPhone7 case iPhone6Plus/iPhone6splus/iPhone7plus case unknown } var screenType: ScreenType { guard iPhone else { return .unknown } switch UIScreen.main.nativeBounds.height { case 960: return .iPhone4 case 1136: return .iPhone5 case 1334: return .iPhone6/iPhone7 case 1920: return .iPhone6Plus/iPhone6splus/iPhone7plus default: return .unknown } } } </code></pre> <p>may it will help you .</p> <p>Happy coding.</p>
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