Aliexpress
Click here… to search for VIVO iQOO 8/128GB CN Blue on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
Coupon (486.81 USD): 13f142
(CouponsFromChina.com tip: you should apply the coupon in your 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): iQOO8, affiliate6, aff7off, bgssaff9, BGIQOO8128, od7off, BGBFAFF2019, BGCITYADS2019, Email5, BGMPB2020, bgshOOp10, 7d18f7, BGCuponation10
(there’s a little possibility that old coupon will work)
Price history and price alert
Do you need price history chart (for all/most countries) for VIVO iQOO 8/128GB CN Blue? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).