We came across a big Mi Mix 4 leak last week with plenty of details surrounding the phone - from camera specs to memory configurations and software features. However, the report left out a few interesting details. A post on Weibo came out today reporting that the Mi Mix 4 will get a 90Hz refresh rate display and 40W fast charging. And to retain the full-screen design from the previous Mi Mix generations, the newest addition to the family will resort to the pop-up camera mechanism for its front shooter. However, we wouldn't suggest you fully trust this information because the source...