Just check coupons out (with price alert and history). Do you want to know what the best price is?
Brand 3LIFE (XIAOMI Cooperation Brand), Operation Method Mechanical, Timing Function 2 Hours Or Less, Input DC 5V 0.65A, Color White, Weight 350g, Size 146x 64x 156 mm, Material Food Grade Silicone / Stainless Steel
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. 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: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): PICODICOM, cec665, BG1155L, BGB75210, BGMinitouch, 2019SPEDM, BGpump999, BG3LW1, AFfbG10, BGKT3566, BG1155329, BG5131, BGWATERPL, BGBINKUPON7962, BGMWP109, BG3LARA, BGBFAFF2019, BGCITYADS2019, BGBAPOHG, BGSBLJP, BGVDay10%off, BGpumpw2, BGHOMEG12, BGMPB2020, BGAFF10OFF, BGdejq25, BGTT10, bGhOnEy10, BGpupu89, BGdragonBoat, BGSHVVDCKK, BGSS10%SW, BGLKZZVVDC38, BGYS796, bgshOOp10, BGDQHOME46, BGCZHOME3, BGGFHOME40, BGHWGFHOME5, BGHome15%, BGR3LIFEPUMP, BGSETD796, BGHOMEA15%, BGOCFO796, BgcLuBofErtA10, BGBFHOME58, BGDEFR796, BGDESE796, BGDEFO796, 13f142, BGCuponation10, BGHONEY2110, BG10OFFAFF, BGMAYSE796, BGMAYTD796, BGwhielabel, BG10OFFAFF1, BANGGOODSD, BGBF20off2
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi 3LIFE Automatic Water Dispenser [EU] ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi 3LIFE Automatic Water Dispenser.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).