There are two variants of device, one with 3GB RAM and 32GB internal memory, other with 4GB RAM and 128 GB Internal Storage. Both these variants have different processors and chipsets to handle the internal memory storage. Xiaomi Mi Max 3GB variant comes with Snapdragon 650 while Mi Max with 4GB of RAM comes with Snapdragon 652.
Xiaomi Mi Max 4GB variant is available for Rs. 19,999 and Xiaomi Mi max 3GB is available at Rs. 14,999.