Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Hong Kong. You can get coupon down below.
Link: Banggood product page
Coupon (46.13 USD): BGSmart6
(CouponsFromChina.com tip: you should apply the coupon 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): BG01RMH, BGAFF10OFF, BGCuponation10, BGRLCAS, 13f142, BGHONEY2110, BGa1c216, BGSHOM15, BGSHE15, BGHKRMCE, BGf80e7c, 6GSGIT, BG4a7a54, BG1d8ddf, BG54f8a8, BG26b8d7
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for REALME RMH2001 WIFI Camera 1080P.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).