What should I check before buying a used iPhone online?

Check these before you buy a used iPhone online:

• Activation Lock / Apple Account lock: Make sure it’s erased and not tied to the seller’s Apple Account.
• IMEI or serial number: Verify the model, storage, and warranty/service status.
• Carrier lock: Confirm it’s unlocked, or that it works with your carrier.
• Battery health: Ask for a screenshot of Battery Health; low capacity can mean a soon-needed replacement.
• Physical condition: Look for cracks, bends, deep scratches, camera damage, burn-in, or water damage.
• Functionality: Check Face ID/Touch ID, cameras, speakers, mic, charging port, buttons, display, Wi‑Fi, Bluetooth, and cellular.
• Repairs: Ask whether any parts were replaced and whether they’re genuine.
• Proof photos: Request current photos of the phone powered on, the About screen, and battery health.
• Return protection: Prefer a platform with buyer protection and a return window.
• Price: If it’s much cheaper than similar listings, be cautious.

Best rule: don’t buy unless you can verify lock status, carrier compatibility, battery health, and return protection.