Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Hong Kong – POCO F4 GT 5G Snap8Gen1 8/128GB (-3 USD)
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Hong Kong.
Link: Banggood product page
Coupon (549.00 USD): BG7e0c3c
Coupon (599.00 USD): BGb5bbab
(CouponsFromChina.com tip: coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGJUNEGSG9, BG8ReviTrage, Cuponation9, 9OFFSUMMER, BgGoodie9, TTBLACK5, BG6952c7, BG98a574, BG16c3a1, BG2ea627, BGe5abb5, BGbee610, BG328dfa, BG3b1265, BG406ae8, BGa57795, BGc03455, BGb3c534, BGMARCHSALE
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Hong Kong – POCO F4 GT 5G Snap8Gen1 8/128GB (-3 USD)
Price history and price alert
Here is price history (for all/most countries) for POCO F4 GT 5G Snap8Gen1 12/256GB.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).