iPhone X (256GB) remains the top back-back models for three consecutive months.
iPhone X was the first in the history of Apple mobile phones that uses Face ID in replacement of a home button. A new camera system allow the device to scan the user face contour less than a fraction of a second, unlocking the phone instantly.
It is also the first Apple phone to use a edge-to-edge OLED screen, making it one of the most stunning display smartphone in the market.
Despite the model is two generations ago, the technology remains up to date, making it a good buy among the used phone market.
iPhone X successor, the XS series, was significantly higher in selling price. On the average, a used XS (64GB) is selling at $700 - $800 (depending on condition) whereas a iPhone X with the same capacity can be purchase $550 - $600.
The huge difference in price proves attractive for buyers who willing to settle for former model.