Aliexpress
Click here… to search for Kospet Prime 2 4/64GB 4G Smart Watch on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (232.81 USD): hoNEYbGdeAlS
Coupon (232.81 USD): BG8ReviTrage
(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): 07bbc7, Email5, bgwp, BGGRPRIME2, BGB5KP2, BGKPP2, BGDEPRIME2, BGSTUDENT10, BGNYP2, BG3KP2, BGKSPRIME2, BG5c3d71, BGSWATCH10, BGbb88c3, BG999185, BGf38a08, BG087486, BG27f06f, BG7d83e7, BGBFPM2, BG85a7ca, BGbd4a16, 2022ACTIESNL, BG7d0a1c, BGd50c7f, pROMo8cuPoN, BGJUNEGSG9
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for Kospet Prime 2 4/64GB 4G Smart Watch.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).