Aliexpress
Click here… to search for HUAWEI Honor 9X 4/64GB on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. One coupon is available. Cool!
Link: Banggood product page
Coupon (182.99 USD): Email5
(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): BGH9X4, aff7off, od7off, BGCITYADS2019
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Do you need price history chart (for all/most countries) for HUAWEI Honor 9X 4/64GB? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).