You can create price alert here, copy coupons and view price history. What is the best price?
Type: A: Heating Type B: Cooling and Heating Type, Design: Cartoon, Material: Stainless Steel Liner, Rated Frequency: 60Hz, Voltage: 220V, Water Temperature Requirement: Warm Hot, Water Temperature: Warm Hot Type, Rated And Heating Power: 550W
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($115.93): Cuponation9
2. ($115.93): BgGoodie9
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGAGDWSFT, 13f142, BGCuponation10, BG10OFFAFF, BGwhielabel, BG1d53cd, BG10OFFAFF1, 6GSGIT, 00c906, BGHYB22, BGAHPU13
(there’s a little possibility that old coupon will work)
Price history and price alert
Check out price history chart (for all/most countries) for AUGIENB 220V 550W Electric Water Dispenser.
Price records source(s): 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)).