The Mi Max 3 popped up on TENAA a few days ago, throwing some more light on what we should expect from the device. Some highlights include an IR blaster, a 3.5mm headphone jack, a 5400 mAh battery, and a notchless 6.9-inch display.
https://www.notebookcheck.net/The-Mi-Max-3-could-feature-a-Snapdragon-636-a-3-5mm-jack-and-no-notch.309716.0.html