Identification of MI Box media players on AliExpress?

Question

media players

I'm going to order a MI Box TV set-top box from AliExpress. The last one officially sold outside of China, if I understand correctly, MI Box S (MI Box 4 version), is almost the same as MI Box 3.
The essence of the problem is that the Xiaomi MC Store seller (top by number of orders) has several pages products MI Box 3, Mi Box 4, and they do not give an idea of ​​the differences.
MI Box 3
ali.onl/18zf
ali.onl/18zg
ali.onl/18zi _ _ , and it seems that the specifications for different products are copy-paste - is there any trick here?