For about two weeks Apple has started selling iPhone on the French refurb, this is the first time it offers the iPhone 8. There was so far 7/7 Plus, the 8 Plus and the X.
There is the choice between the two versions of 64 GB and 256 GB and the three colors (not the RED, unfortunately):
iPhone 8 64GB in gold / silver / sidereal gray at 579 € instead of 685 €
256GB iPhone 8 in gold / silver / sidereal gray at 729 € instead of 857 €
These models are also available, in nine, at Amazon but at rates that place between the recommended price of Apple for new and those of the refurbished. Thus Amazon puts the iPhone 8 64 GB in a range of 627 € to 649 € depending on the color. And the iPhone 8 of 256 GB oscillates between 787 € and 849 €.
If you hesitate to buy on the refurb, take a look at this previous article for which we had ordered 3 different models (read Refurb: what are the Apple refurbished iPhone worth?).