Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
Video Format AVI, Record Time About 60 minutes, Material ABS, Picture Format JPG, Video Coding M-JPEG, Product Size 27x 25x 25mm/1.06x 0.98x 0.98”, Charge Voltage DC-5V 1A, Motion Detected Record Support, Battery Capacity: About 180mAh Lithium Battery, Video Resolution 1920*1080, Storage Support: 8GB-128GB, Video frame rate 30fps, Interface Type Mini 8PIN USB, Transmission Speed USB
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. I don’t think there is an active coupon right now – at least in my database.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGDQHOME7, BGGFHOME7, bGhOnEy10, BGSEPSE646, BgoFErTaSchInA10, BGTDSE350, BGHOMEA15%, BGNOFR646, BgcLuBofErtA10, BGAFF10OFF, BGCuponation10, 13f142, BGHONEY2110, BANGGOODSD
(there’s a little possibility that old coupon will work)
Price history and price alert
Here is price history (for all/most countries) for MD25 1080P Mini Portable Magnetic Camera.
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)).