Our price comparison engine finds the best offers for your old electronics.
Sell Your AT&T iPhone 3GS
How can I find out my iPhone model?
To identify your iPhone model you have, open the Settings app and navigate to General > About.
Need additional help identifying your iPhone?
Choose the AT&T iPhone 3GS you want to sell
Trade In iPhone 3GS from AT&T
uSell's trade-in matches you with the highest offer for your AT&T iPhone 3GS. When you sell your AT&T iPhone 3GS, it's important that you select the correct model to ensure fast payment.
If you can't easily identify the iPhone that you are selling, you can check the iPhone 3GS specs by opening the Settings app and navigating to General > About. If you're having trouble finding out your iPhone specs, click here to learn which version iPhone you have. Or, just contact us! We're here to help!