Among the reasons would be the celebration of Black Friday and the desire to update the owners of iPhone 5, iPhone 6 and iPhone 7.

While some point to the positioning of the new iPhone X as a whole sales success, having tickets to become the best-selling smartphone of the fourth quarter, others warn of the effects of this release and the launches of iPhone 8 and iPhone 8 Plus in the second-hand market .

And the recent announcements of Appl e could shoot up to 200% the sale of iPhone phones from here to Christmas.

This is estimated by the Spanish e-commerce firm, which notes that two years ago that resale grew 75% after the announcement of the iPhone 6.

Now the movement could be greater for several reasons. On the one hand, from point to key dates for sales that are still to live this year as Black Friday or the campaign itself , which match the availability of iPhone X, iPhone 8 and iPhone 8 Plus.

On the other hand, there would be a multitude of Apple users waiting to be updated after the Californian company has not included big updates in previous terminals. It would be the owners of iPhone 5, iPhone 6 and iPhone 7.

Other factors to take into account, according to, would be the return to prestigious brands by young people and the announcement of the iPhone X in the midst of a new generation of iPhone, which sets two different levels of price to the time for renewals.