Buy iPhone in France from USA

Not sure what exactly you want to do, but:

You can purchase in the French Online store to ship to an address within France if you are in the U.S.

You can purchase in the U.S store to ship to a U.S address if you are in France.

You cannot purchase in the U.S store to ship to France.

The USA Apple Store does not ship outside of the USA. It also requires payment in US dollars. Also the warranty may not be honored outside of the USA (as explained in the warranty terms).

If it is going to be used in France with a French carrier, it would be best and recommended to buy it from Apple France - https://www.apple.com/fr/

Michael Black wrote:

The USA Apple Store does not ship outside of the USA. It also requires payment in US dollars.

True, but it does accept credit cards from a limited amount of foreign countries for payment in the U.S. store. It charges in U.S dollars and leaves the exchange rate calculation to the card issuer or bank.

https://www.apple.com/shop/help/payments

If you are paying for your order with an international Visa, MasterCard, American Express, or UnionPay credit card, please note that the purchase price may fluctuate with exchange rates. In addition, your bank or credit card issuer may also charge you foreign conversion charges and fees, which may also increase the overall cost of your purchase.

Please contact your bank or credit card issuer regarding these fees.

Yes, I know. Just saying that one way or another, you must have a method of payment that will pay Apple in US currency, regardless of what that payment provider charges the buyer to process that foreign currency exchange. Apple itself doesn’t do currency exchange or accept foreign currency.

You would either need to find someone to do it for you, or you would need to find a specific gray market seller.