You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
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):
Charging Time: 2H, RPM: up to 36000, Input Voltage (V): 5V, Working Current: Standard file 400 ± 10mA; strong file 500 ± 10mA, Battery Information: 800mAh, Input Current: 1A, Materials: ABS, IP rating: IPX7
Banggood
Banggood warehouse is located in Hong Kong.
Link: Banggood product page
1. ($29.99): BG2f1afa
2. ($30.59): BG4ee866
3. ($30.99): BGc97422
4. ($33.83): BG00c906
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): BG4937, BGHU980, BGF1937, BGF1493, BGAFF10OFF, BGF2299, BgcLuBofErtA10, BGCF1499, BGOCLEAN2, BGOCF1, BGF14937, BG19561, BG22371, BGWT1499, BG10OFFAFF, BGMAY048, BGwhielabel, BGjune10, BGjune21, BGjune28, BGjune50, BGjuly63, 13f142, BGjuly0770, BG10OFFAFF1, BG73202c, BGa20c4f, BGcd5bb8, BG8b78ee, BGHealth06, 00c906, BGHealth10D, 2022ACTIESNL, BGHB218, BGXPAP263, tRaDetRaCKeR, BGHECARE1, BG39a0fe, BGab19c1
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Oclean F1 Sonic Toothbrush.
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)).