Aliexpress
Click here… to search for JSBP X361 3/32GB Smart Watch on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. Only one coupon available!
Link: Banggood product page
Coupon (177.90 USD): BGc70579
(CouponsFromChina.com tip: apply it 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): BGMRTICKS, BGOD1, AFfbG10, BGBFAFF2019, BGCITYADS2019, BGVDay10%off, BGAFF10OFF, BGTT10, bGhOnEy10, BGdragonBoat, BGSS10%SW, bgwp, Email5, band10, BGCuponation10, BGWRIBAND10, 6GSGIT, BG51f436
(these coupons are old, so probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for JSBP X361 3/32GB Smart Watch.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).