Aliexpress
There’re some similar items on Aliexpress in my database. There may be some other items though.
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Xiaomi Watch S3 AMOLED Smart Watch | 129.59 USD | – |
 |
Xiaomi Watch S3 AMOLED Smart Watch | 134.05 USD | – |
More on Aliexpress… Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
Coupon (207.89 USD): BG10OFFAFF1
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply 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): e2bcea, plab03, plabc08, HU19152, plxm2s, a0d41e, 6f4864, PICODICOM, BGAIR2S6, BGc42970, BGPURI2S, BGHG522, BGAIR2S, BGAIR2S8, BGAIR2S9, BGMAS209, BGXMMJ2S, BGPAIR2S, BGHOMEAPP13, BGHOMEA13, 7bcdf9, BGCuponation10, BG10OFFAFF, BGwhielabel
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi OLED Smart Air Purifier 2S EU Version.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).