[4] On 31 October 2014, it was reported that the upcoming Meizu device was certified by the Chinese telecommunication authority TENAA, equivalent to the American Federal Communications Commission.

[7] The Meizu MX4 Pro was released with an updated version of Flyme OS, a modified operating system based on Android KitKat.

The Meizu MX4 Pro features a Samsung Exynos 5430 system-on-a-chip with an array of four ARM Cortex-A15 and four Cortex-A7 CPU cores, a Mali-T628 MP6 and 3 GB of RAM.

The functionality of these keys is implemented using a technology called mBack, which makes use of gestures with the physical button.

Android Authority gave the MX4 Pro a rating of 8.5 out of 10 possible points and praised "QuadHD display, good performance, an enjoyable sound stage, and an above average camera".

Android Headlines also reviewed the device and concluded that "build quality is excellent, software is well polished and exudes a unique style that feels very Meizu, and overall the MX4 Pro is one of the favorite phones of the year".

PhoneArena gave the MX4 Pro an overall rating of 9 out of 10 possible points and praised the high performance and excellent audio quality.