How to sell your old phone, option 1: Sell it to a buy-back service
Looking for a quick and easy option? Consider selling your old device to a buy-back service. Although it's not entirely without risk -- if the old iPhone isn't in the condition you said it was, for example if it is a broken iPhone, you may not get the full value quoted by the buyer -- it does minimize the time and hassle, especially compared with trying to sell it yourself on, say, eBay or Craigslist.
There are traditional trade-in options like those offered by Apple and Best Buy (see the next section), and then there are buy-and-sell marketplaces like those listed below. Before you spend a lot of time hopping from one to another to get quotes, head to Flipsy, which compares US trade-in values at multiple buy-back stores. It shows you the payment methods, price-lock duration (that's how long you have before you need to send the phone in) and price based on the condition of the old device. (Because each buyback program and store is little different when it comes to "condition" definitions, Flipsy doesn't drill down beyond phone model, carrier and storage.) SellCell is another price-comparison service for anyone looking to score top dollar for an old iPhone. Full article here...
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