Unveiled on August 31, 2017, at IFA, it is a revival of the previously discontinued Moto X line.

The front has a front-facing camera with flash, LED notification light, and the proximity sensor in the top bezel.

Its Moto Turbopower fast-charging technology can add about 5 hours of battery life with 15–20 minutes of charging.

The Moto X4 uses the Qualcomm Snapdragon 630 SoC at 2.2 GHz, and the Adreno 508 GPU at 650 MHz.

[citation needed] The Moto X4 comes with a 3000 mAh Li-ion non-removable battery that Motorola claims can provide a full day of usage.

[citation needed] Along with the Moto Turbopower technology, the battery performance of the phone is good.

The X4 was originally made available to buy on September 21, 2017, in France, Germany, and the United Kingdom via the Motorola website, and proved popular with many customers ordering it within a few days of release.

However, Motorola was unable to meet the demand due to manufacturing and shipping issues, with many customers having their orders cancelled and refunded after the expected delivery dates.

Project Fi X4's were also hit by the issues and customers who had made pre-orders were contacted, delaying their delivery dates by around 2 weeks.