QUESTION
Should you buy a used iPhone from Facebook Marketplace?
Usually, no — don’t buy a used iPhone from Facebook Marketplace unless you can inspect it in person, verify it is unlocked and not activation-locked, and pay in a way that lets you walk away before handing over money.
Facebook Marketplace can be cheaper than certified refurb or carrier trade-in listings, but used iPhones are high-risk because they can be stolen, iCloud/Activation Locked, carrier-financed, blacklisted, damaged, or misrepresented.
If you do proceed, use this rule: meet at a carrier store or public place, turn the phone on, erase/setup-check it, insert your SIM or check eSIM compatibility, verify the IMEI with the carrier, confirm Find My iPhone is off, test Face ID/Touch ID/cameras/speakers/charging, and never accept shipping, deposits, gift cards, wire transfers, or “too good to be true” prices.
Safer choice: buy from Apple refurbished, a reputable refurbisher, a carrier, or a marketplace with stronger buyer protection and return options. It may cost more, but the risk is much lower.