The two mobiles have the same screen. It is a display of 6.44 inch with a resolution Full HD 1,920 x 1,080 pixels, which also has IPS LCD technology. It is a large format screen, and although the resolution is not quite Quad HD, it is logical in a smartphone that does not have a price of a flagship. In any case, there is no improvement in screen quality between the two smartphones.
Instead, the new Xiaomi Mi Max 2 has a worse processor than the previous smartphone. Its about Qualcomm Snapdragon 625, mid-range. But it is that the previous Xiaomi Mi Max had a Qualcomm Snapdragon 650 processor. This difference in the processor will not be especially relevant, but the truth is that it is clear that they have not considered it necessary for the performance of the smartphone to be superior.
However, the RAM memory does improve, since it goes from 3 GB to 4GB. Thus, with a somewhat worse processor, and with a higher capacity RAM, it is possible that the overall performance of the smartphone is even better.
Of course, both phones have the same internal memory options, 64 and 128 GB, expandable by means of a microSD card.
The camera also improves on the Xiaomi Mi Max 2. And it is that it goes from a 16 megapixel camera to a 12 megapixel camera. By having fewer megapixels, these reach 1.25 microns, which gives photos of a higher quality. This technology is what has arrived in the high-end smartphones on the market and now also the Xiaomi Mi Max 2.
One of the keys to this Xiaomi Mi Max 2 is that the battery is 5,300 mAh. This is a notable improvement over the Xiaomi Mi Max, which had a 4,800 mAh battery. In addition, taking into account that the screen is the same (which is the component that consumes the most battery), and that the processor is even more basic, the autonomy will improve significantly.