Buying a used phone or laptop is an easy way to save some money. While there are plenty of sites where you can buy a used gadget directly from its current owner, it’s hard to know exactly what you’re getting when doing so.
That’s not to say that buying a used device from someone on Swappa or eBay isn’t a good idea — both sites have buyer protection policies to ensure you get what you paid for. However, you have another option: Buy a refurbished phone or laptop.
Source CNET Computer News