How much is my Apple iPhone 6S worth?
Currently the best cash offer for a Apple iPhone 6S is $128. Selling your old Apple iPhone 6S online is better than in-store because you get cash rather than trade-in value that can only be spent in-store. Also, it’s common to get a higher amount than in-store trade-in.
How to sell your Apple iPhone 6S for cash online
Selling your old Apple iPhone 6S online is free and easy. Make sure that everything works and there is no major damage. Package and mail in your device for free. Receive your payment the day after your Apple iPhone 6S is delivered.