Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
Coupon (40.79 USD): bgdt15
(CouponsFromChina.com tip: apply code in your basket (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): e2bcea, TTxBG10, aff7off, DT155, BG3CSUM, PICODICOM, bgdt10, BGaDmITAd, 7d18f7
(these coupons are old, so probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for NO.1 G8 Smartwatch? There we go.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).