To identify which iPhone series you have, open the Settings app and navigate to General > About.
Need additional help identifying your iPhone?
Find top offers for iPhone trade-in from professional buyers in seconds. uSell.com helps you sell your iPhone 4, iPhone 4S, or iPhone 5 safely, quickly and hassle-free. Just select your iPhone series from the list above, and then specify the exact model and condition of your phone. You'll be surprised by the offers you get to sell your used iphone or sell broken iphones.
What happens when I sell my iPhone?
After you send in your iPhone, your buyer will inspect your device. As long as it matches your description, the buyer will issue you payment for your iPhone via check or PayPal.