Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood.
Link: Banggood product page
Price: -3 USD
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): KTC29, 427168, 2133CPO, PICODICOM, aff7off, bgssaff9, AFfbG10, affbg10, BGBINKUPON7612, BGBFAFF2019, BGCITYADS2019, BGSCESR, BGHome15%, bGhOnEy10, BGHOMEA15%, BGOCTD784, BgcLuBofErtA10, BGAFF10OFF, BGCuponation10, 7bcdf9, BGHONEY2110, BG10OFFAFF, BGwhielabel, BG10OFFAFF1, BANGGOODSD
(these coupons are old, so probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi SCISHARE Capsule Espresso Coffee Machine.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).