You will almost always get more money selling directly to another person or using an online service.
You can walk in with a phone and walk out with cash in as little as 10 minutes. pawn shops that buy cell phones
You can sometimes haggle, especially if you have the original box, charger, and accessories. Cons: You will almost always get more money selling
Services like The Whiz Cells often pay more than automated kiosks or pawn shops, though you have to wait a few days for processing. pawn shops that buy cell phones