Where can I sell my old iPhone?

In Apple stores you can use a trade-in, or offer your phone to the service for details

If you sell your iPhone, be sure to prepare it for resale as outlined in:

What to do before you sell, give away, or trade in your iPhone or iPad - Apple Support

If you sell it on a "marketplace" site, beware of scammers. There are all sorts of scams out there targeting both buyers and sellers. For instance, a "buyer" may send you a check for more than the sales amount, asking you to refund the difference. Your check will clear. The scammer's check won't, but by the time you discover that, the scammer may already have gotten away with your money. Or a "buyer" may claim that they never received your phone, and abuse buyer protection policies in order to rip you off and get a "free" iPhone.

I've seen kiosks at some shopping malls that offer cash for smartphones, but they offer insultingly low amounts.

While Apple does accept some models of iPhone for a small trade-in amount, there is no place to sell a used iPhone on Apple’s website.

You can offer it for sale on eBay. Or, you can offer it for purchase at a place like Gazelle.

If you're trying to sell it here, you're in the wrong place. This is a user-to-user tech support forum. Not a swap meet.

I have iPhone 14 for sale,I have this from December 2023

I can sell my iPhone 15 128gb 8 months warranty