$77.99 – Executive standard GB 4706.1-2005, Product Name Mijia T700 Sonic Electric Toothbrush, Product color Dark blue, Rated power 4.2W, Net weight About 220g, Charging time 6 hours, Waterproof grade IPX7, Product model MES604, Product size Φ27mmx255mm, Brush material DuPont brush, Charging mode Inductive charging, GB 4706.59-2008, Rated input 5V.
When I was updating this page the price was $77.99 for Xiaomi Mijia Sonic Toothbrush T700 (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Let’s see what best price is ATM.
Latest coupon code price check (UTC time):
Banggood ($77.99)
Banggood warehouse is located in China. I can’t find any active coupons for this product in Banggood. Price? From what I can see this price is higher than average price ($77.84).
Link: Banggood product page
Price: $77.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGMJT700, BG9907, BG10OFFAFF, BGwhielabel, 7bcdf9, BG10OFFAFF1, BANGGOODSD, BGHealth06, BGHealth10D, BGXPFE93, 2022ACTIESNL, BGHB218, BGMAYB2429
(these codes were not working in latest coupon update, but you can check them out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Mijia Sonic Toothbrush T700. The lowest price was: $71.99.
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)).