Gutted Xiaomi Mi Mix 4 reveals its secrets in teardown video

The Xiaomi Mi Mix 4 has already starred in a teardown video, which among other things has revealed where the under-display camera is actually located. On top of solving that little mystery, another highlight of the video embedded below is a glance at the dual-cell battery solution that the Mi Mix 4 utilizes. It’s clear to see that Xiaomi has reserved a significant amount of space for the cooling system, which is important to keep the smartphone’s Snapdragon 888+ SoC ticking over efficiently.

The clip shows the Mi Mix 4’s under-display camera (UDC – also called camera under panel (CUP)), which is located in the center of the top edge of the flexible panel. Indium Tin Oxide (ITO) wiring material is utilized in the system that allows for pixel reduction over the selfie camera area thus leading to increased transparency for when a photo is going to be taken. Apparently this under-display camera technology cost Xiaomi 500 million yuan (US$77 million) in research and development investment and took two years of hard work to perfect.

Interestingly, at one point in this specific Mi Mix 4 teardown video, there is a look at the AnTuTu performance result for Xiaomi’s latest release. The total score reads 792,743 points, which is an enormous amount that would place the Mi Mix 4 in the top 10 chart of the benchmark’s current ranking. There’s even an opportunity to see the device’s impressive 120 W wired charging support in action, with a graph revealing that just 20 minutes is required to take the Xiaomi Mi Mix 4 from 0% to 100% charge.

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