Buying a second-hand phone can save you hundreds of dollars — but it also comes with real risks. Stolen devices, hidden damage, misrepresented specs, and scam sellers are all common. This guide gives you a complete checklist to protect yourself before handing over any money.

Before you meet the seller

Do this before agreeing to meet

  • Ask for the IMEI number and verify it matches the advertised model using a free checker
  • Search the IMEI for blacklist status with your carrier or a paid service
  • Check the seller's profile — how long have they been on the platform, do they have reviews?
  • Reverse image search the photos to check they are not stolen from another listing
  • Ask for original purchase receipt or proof of ownership
  • Confirm the asking price is realistic — suspiciously low prices are a red flag

When you meet the seller

Physical inspection checklist

  • Meet in a public place — never go to a private address for a high-value transaction
  • Check the screen for cracks, dead pixels, and discoloration
  • Test all buttons — volume, power, home button if applicable
  • Test the cameras (front and rear), flash, and video
  • Test the speakers and microphone (make a call or play music)
  • Check charging port and headphone jack if present
  • Check battery health (Settings → Battery on iPhone, or a battery app on Android)
  • Check for water damage indicators (usually a small sticker inside the SIM tray)
  • Dial *#06# to confirm the IMEI on screen matches the IMEI on the box and seller's listing
  • Insert your own SIM card to confirm the phone works on your network
  • Check that iCloud (iPhone) or Google account is signed out before paying

Red flags — walk away if you see these

Warning signs of a bad deal

  • Seller refuses to let you dial *#06# or check the IMEI
  • IMEI on the device does not match the box or listing
  • iCloud or Google account is still logged in and seller cannot remove it
  • Price is significantly below market value with no clear reason
  • Seller wants to meet somewhere unusual or rushes you into buying
  • Phone has been factory reset but seller cannot explain why
  • Seller asks for payment via untraceable methods (crypto, gift cards, wire transfer)
  • No original box, accessories, or proof of purchase

The iCloud lock trap

One of the most common scams with iPhones is the iCloud lock. If the previous owner's Apple ID is still linked to the device and they have not removed it, you will be locked out of the phone permanently after a factory reset. Always verify the iPhone is fully signed out of iCloud before paying — go to Settings, tap the Apple ID at the top, and confirm no account is listed.

How much should you pay?

A good rule of thumb: a used phone in good condition should sell for 50-70% of the current new retail price. Phones with visible damage, older models, or locked to a specific carrier should be priced lower. If the price is significantly below 50% of retail with no explanation, be cautious.

Check the IMEI before you buy

The first step is always a free IMEI check. Verify the device is real and matches what the seller claims.

Free IMEI Check →