Are refurbished iPhone sold with a contract or SIM card?
No, refurbished iPhones are not sold with a contract or a SIM card*. When you buy a refurbished iPhone, you are most likely only buying a piece of hardware without a long-term commitment or a phone number.
If you are buying a refurbished iPhone before having a phone contract or SIM card, you may want to choose an unlocked phone to be sure that it will be compatible with any carrier. You can also learn how to unlock an iPhone.
*unless stated otherwise on the seller's website.