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In my application I am downloading some images from the web (from my server to be precise), in order to save some bandwith and especially memory on the phone, I provide them in two resolutions: 480x320 for the "old" iPhone series and in 960x640 for the iPhone 4 with the retina display. Now I need to be able to detect from within the app when it is running on a device that supports the retina screen. How could I do that? I have been thinking about using the code snippet below which would return me a specific device identifier such as eg. "iPhone3", yet then I would be limiting the detection to the iPhone4 and would need to update that code for any subsequent device with a retina display. size_t size; // Set 'oldp' parameter to NULL to get the size of the data // returned so we can allocate appropriate amount of space sysctlbyname("hw.machine", NULL, &size, NULL, 0); // Allocate the space to store name char *name = malloc(size); // Get the platform name sysctlbyname("hw.machine", name, &size, NULL, 0); // Place name into a string NSString *machine = [NSString stringWithCString:name]; Is there any better soution (maybe it is very obvious but I missed it)?

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