Xiaomi Mi Max is what budget-minded fans of huge screens have been waiting for. And we do mean huge - 6.44" from corner to corner. That screen is housed in a metal unibody that measures 7.5mm thick. The size, plus the massive 4,850mAh battery, push the weight to a hefty 203g. There are three versions in total. The top version has a Snapdragon 652 chipset, 4GB of RAM and 128GB storage. There's a 3GB/64GB option as well. The most affordable model uses the Snapdragon 650 instead and has 3GB of RAM and 32GB storage. Xiaomi Mi Max The difference in chipset is two extra Cortex-A72...
Source: http://www.gsmarena.com/xiaomi_mi_max_with_644_screen_snapdragon_652_unveiled-news-18152.php