Aliexpress
There’re some similar items on Aliexpress in my database. There may be some other items though.
More on Aliexpress… Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (301.01 USD): BGHOMEA13
Coupon (336.99 USD): 7bcdf9
(CouponsFromChina.com tip: this code has to be applied 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): BGXMPC1, aff7off, BG9NY, BGWPXM, BGHOMEAPP, bGhOnEy10, BGXMWPC1, bgshOOp10, BGHome15%, BGHOMEAPP13
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Water Purifier C1.
Price records source(s): Banggood
Click on image to enlarge.
You can set price alert (for Banggood).