Apple says that the number of iPhone X pre-orders received are much more than the company expected
Problems with the production of the iPhone X included deliveries of OLED panels that did not meet Apple's requirements. The model is the first iPhone to feature an OLED panel. In addition, the TrueDepth Camera, which drives the Face ID face recognition system, also was very complicated to build. All together, Apple was reportedly achieving a very low 10% yield on the production of the handset. If true, this meant that 90% of the iPhone X units rolling off of the assembly line failed to meet Apple's strict requirements.
The Apple iPhone X will launch on November 3rd, a week from today. All Apple Stores will open at 8am local time on that date, and each store is expected to have an unknown number of iPhone X units in stock to handle some of the demand from customers hoping to walk-in and purchase the new phone.