Aliexpress
Click here… to search for Xiaomi BOBOT WIN3060 Window Cleaning Robot on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
Coupon (241.01 USD): AFfbG10
(CouponsFromChina.com tip: coupon code has to be applied in shop’s 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): bgssaff9, BGNApb02, BGMIB2, bg2g00d, TS15prime, BGBinKupon916, BG2Clean, TISPrime01, Tools1
(probably won’t work, but you can try them out)
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi BOBOT WIN3060 Window Cleaning Robot.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).