A:Answer A refurbished product is usually a device that someone has owned and used for an indeterminate period of time, and which someone else has restored to working order for resale.
A listing described as "open box" means that someone else bought the product for sale and may have removed it from the box before deciding to return it. That person may also have used it.
You can save money by buying an open box product, but inspect it thoroughly to make sure it is complete and no parts are missing; that there is no cosmetic damage, such as scratches or dents; and that the product works as described.