If you consider purchasing the iPhone online, be sure to protect yourself so that it does not end with cheating. If you find an ad on a very cheap iPhone online, you should be very careful. One of the tips for cheating is that the seller claims that you are paying through a money transfer company in the area, will not let you use your credit card.
Another idea is dealing with fraud when the alleged sales partner does not provide tracking information or says the iPhone is held by customs officials. Often, "sellers" ask for cruelly more money to let the customs authorities release the article so they can double the buyer twice.
Always keep in mind when buying iPhones online, always insisting on selling reputable sellers who allow your credit card to be repurchased if the transaction is banned or if the seller tries to fool you.
If you buy from eBay, always read the seller's feedback. It's a good idea to ask the seller if the iPhone is released by selling a refurbished iPhone and if it's still a guarantee. Do not accept vague answers and do not buy it to anyone who has less than a constellation rating. Keep in mind that you have many choices when purchasing your iPhone online, so if a transaction does not "feel" right, do not do it! Always keep an eye on it when buying online.