Xiaomi Mi 4 features a Snapdragon 801 quad-core 2.5Ghz processor, 3GB of RAM and either 16GB or 64GB of internal storage. It has a 1080p IPS LCD 4.7″ display, and a 13MP rear camera, as well as a 5MP front facing camera.
CyanogenMod, which is a team of developers, does a better job of providing latest Android updates than most of the Android manufacturers. They have made Android 6.0.1 Marshmallow nightlies available for a lot of devices. Xiaomi Mi 4 is one of them. If you want to install CM 13 on Xiaomi Mi 4, follow the guide below.