Price history, coupons and price alert are available on this page. What is best price?
Battery Life 30d after fully charged, Color White, Brushing Mode ①Standard Mode, Waterproof Rating IPX7, Size L187.5mm, Rated Voltage 3.7V, Net Weight 41.7g, Rated Power 0.6W, Noise <60db, Model MES603, Charging Way USB Charging, Φ28.5mm, ②Gentle Mode, Charging Time <4 hours
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 code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($26.99): BGHONEY2110
2. ($28.99): 13f142
this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG3T100, BGGR297, BGHU460, BG3T100v19, 502C6B, BG2SBR, BGDouble11HC, BG3P56, BG4Men2, BGMi3P, BGOMG23, BG3MiJ2, BG2MFC, BGTMCB7, bgshOOp10, bGhOnEy10, BGE3811, BGHB20, BGSD58965, BgcLuBofErtA10, BGNMJI1200, BGNNHN0101, BGAFF10OFF, BGCuponation10
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – 3Pcs Xiaomi Mijia T100 Sonic Toothbrush [EU] ($-3)
Price history and price alert
Here is price history (for all/most countries) for 3Pcs Xiaomi Mijia T100 Sonic Toothbrush.
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)).