Just check coupons out (with price alert and history). Let’s see what best price is ATM.
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):
Ambarella A12S75, CMOS Sony IMX 317, 7 glass lens 145-degree wide angle, Six-axis EIS
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
1. ($89.99): TTxBG10
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): 4a5bd1, AlibuyBGMJ4K, e2bcea, 502C6B, plali01, ea5732
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Do you need price history chart (for all/most countries) for Xiaomi Camera MINI 4K Action Camera? There we go.
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)).