You can create price alert here, copy coupons and view price history. What is 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):
Running memory 1GB, Video output wireless video output / support Android/iOS system devices, Wireless module built-in WiFi / 2.4GHz, Front sensor 4 million pixel color image sensor, Image pixels 2560X1440 on the front / 1080 on the back, Satellite positioning built-in high-precision GPS module / precise positioning, Front processor Quad HD Ultra HD H.264 video encoding processor, Rear sensor HD color CMOS image sensor, Rear processor HD HD H.264 video encoding processor, Front lens diagonal 140° wide angle / F1.8 aperture, Brand DDPAI, Model X2S Pro, G-Sensor Built-in three-axis acceleration sensor / collision lock / sensitivity can be adjusted through App, Storage TF card storage / maximum support 128GB / automatic loop recording, Rear lens 125° diagonal / F2.0 aperture
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($576.17): BGHONEY2110
2. ($631.19): 7bcdf9
put item in your cart and apply coupon code there 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): BGDDpai129, BGAFF10OFF, BGCuponation10
(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 DDPAI X2S Pro Dash Cam? There we go.
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)).