I have a 5c and a 6s. I now have an iPhone 12. Obviously, I got my iPhone 12 because the fact that I won't be able to update to iOS 15 if I kept my 6s. My 5c is basically a paperweight. My 6s was loosing power at ridiculous percentages. It was also almost 6 years old with the original battery. I don't expect to get any money back from trading them in especially the 5c. (Sorry I couldn't include the 6s in the prefix.)