More cash for your trade-in with less effort than a carrier buyback program.

Trade In Your AT&T iPhone 3GS for Cash

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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?
Click here.

Get More In Cash than AT&T Buyback Offers

Sell your used smartphone for cash at uSell.com. With uSell's smartphone trade-in, you can get a cash offer for your phone in 30 seconds or less.

AT&T Trade-in requires a new contract purchase to trade in your phone for bill credits or a giftcard, and it can take AT&T up to 90 days to issue your credits. Let uSell pay you cash instantly with no strings attached instead.

How to Trade In Your AT&T iPhone 3GS

Start by selecting your model of AT&T iPhone 3GS from the list above. If your phone is from a different carrier, go here to get an offer for it. Lock in a top offer for your device and we'll keep your price good for 30 days. Then send in your phone for free using our postage-paid shipping kit. After you send in your smartphone, we will inspect your device and, as long as it matches your description, we issue you payment via check or PayPal.

“My favorite of the selling sites.”
-Jean Chatzky, NBC Today Show
uSell Press
uSell Press
Selling Your Device Is Simple
Get an instant offer, ship your device for free, get paid. It's all guaranteed for 30 days.