Refurbished iPhones are devices that were pre-owned then sent back to the manufacturer or a refurbisher. They may have been returned by a customer for any number of reasons, or they were a display item that is now getting sold.
The iPhone gets tested and fixed and is sold only when it is completely functional. The phone may still have marks (cosmetic imperfections), but it works as well as a new device would. Still, these aesthetic differences are why the price tag can be so much lower than that of a brand new iPhone.
We advise you to buy a refurbished iPhone from professional and certified refurbishers. They will likely include a warranty with the item; in our opinion, that is the mark of a trusted source.
All iPhones advertised on RefurbMe are sold by professional refurbishers. As we only compare iPhones from different merchants, we do not have information for the exact history of each iPhone. We encourage you to get in touch with the merchant of your choice for more details.
In order to make an informed decision, read these 9 facts you need to know before buying a refurbished Apple product.