Most iPhones share a similar design, so it's not always easy to tell which model you own. This information is essential when shopping for accessories like cases or asking Apple for technical support. Here's how you can find which smartphone is in your pocket.

To get started, launch the "Settings" application. If you can't find the app, from the homescreen, swipe down on the phone's display and use Spotlight to search for "Settings."

Apple iPhone Homescreen

Next, scroll down and tap on the "General" option.

Apple iPhone Settings Menu

Third, select "About" from the top of the list.

Apple iPhone General Settings Menu

Now that you're on the About screen, you can see the "Model Name" and "Model Number" of your iPhone.

Apple iPhone About Settings Menu

The Model Name of your iPhone is all you should need to know when buying cases and other accessories specifically designed for your handset. The Model Number is information that only Apple might need.