RAM 6GB LPDDR4x 2133MHz dual channel large memory, Built-in lithium-ion polymer battery, Battery(Built-in) 4030mAh(typ), Resolution 2340*1080 Pixel, Display Size 6.39 Inch AMOLED Full Screen Display, GPU Adreno 640 graphics processor, Card Extend Supports an external TF card up to 256GB (VFAT), OS MIUI 10, ROM 64GB UFS2.1, Game Turbo 2.0, MI Turbo, Dynamic wallpaper and display, 10nm process, 3940mAh(min), CPU Snapdragon 710 Octa Core Max to 2.2GHz.
Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Hong Kong. There are no active coupons for this product, but the price is pretty low isn’t it?
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGM9L64, BGaDmITAd, BGM9L642, BGM9L6C, BGM9L6CL, 7bcdf9, BG109L6, BG109L8, BG109L9, od7off, BGM9L6U, BG99L64, BG119L6, BG9L6CL, BG9LGG, BGissam9L1, BGD119L6, BGDGRM9L64, BG59L64, BGBFAFF2019, BGXM9L664, BGissam9L, BGCITYADS2019, BGBF9L64, BGBFSPM9L1, BGCL9L6
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Other warehouses/versions
This item is available in 2 another warehouse/versions!
1. Hong Kong – Xiaomi Mi9 Lite 6/64GB Global Blue ($-3)
2. Hong Kong – Xiaomi Mi9 Lite 6/64GB Global White ($-3)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Mi9 Lite 6/64GB Global Black. The lowest price was: $197.99.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).