The top-end 12GB RAM/512GB internal storage version of the Mix 4 started at nearly US$1000 in China. Now, however, this SKU can be had for close to the original price of the phone's base model through an online retailer in the same country. It is also being offered in attractive bundles with accessories that get extreme on various levels in some cases.
https://www.notebookcheck.net/Xiaomi-gives-the-ultra-premium-Mix-4-a-top-end-discount-in-China.597776.0.html