1. Conduct a survey and compare trade-in values on various sites
By conducting sales price surveys on various sites, you can find different prices. This price difference can be used to compare device prices before deciding to sell them.
One site for comparing prices that you can try is CompareMyMobile. This site will show various price variations for the devices you offer.
So you will get the best payment.
2. Delete all your personal data, make sure nothing is left behind
One thing you need to remember is, before deciding to sell your old iPhone, make sure there is no personal data left on it.
The personal data in question ranges from email accounts, social media, private messages, photos and other important data. Make sure your device has been restored to its original settings.