Aliexpress
Click here… to search for XANES H2 Smart Wristband Black on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
Coupon (18.66 USD): BGc70579
(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): coolsale, 502C6B, BRANDXS, AFfbG10, BGVDay10%off, BGXXANES, bGhOnEy10, BGdragonBoat, BGSS10%SW, band10, bgshOOp10, 13f142, BGCuponation10, BGWRIBAND10, 6GSGIT, BG51f436
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for XANES H2 Smart Wristband Black.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).