Just check coupons out (with price alert and history). Best price?
Battery life: 30 days, Waterproof Rate: IPX7, Battery capacity: 800mAh, Bluetooth: 4.2 BLE, 40000 strokes/min and 220gf.cm strong torque output
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. There is one great coupon!
Link: Banggood product page
1. ($80.99): 13f142
coupon code has to be applied in shop’s 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): a45b01, vipupgrade8, TTxBG10, BGOCLEAN, BGCFC01, BGss8%hl, bgssaff9, AFfbG10, BGRN732, BGOCA99, 502C6B, BGBGOOD4, bgshOOp10, BGHB20, bGhOnEy10, BgoFErTaSchInA10, BGSD58965, BgcLuBofErtA10, BGHBHJ107, BGAFF10OFF, BGCuponation10
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Oclean Air Sonic Toothbrush White.
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)).