Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon available! Pretty cool, huh?
Link: Banggood product page
Coupon (118.79 USD): TTxBG10
(CouponsFromChina.com tip: this code has to be applied 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): 4plus10, e2bcea, 4plus14, Alibuy4p, 47c3fb, 502C6B
(probably won’t work, but you can try them out)
Price history and price alert
Do you need price history chart (for all/most countries) for Zeblaze THOR 4 Plus 1/16GB Smartwatch? There we go.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).