Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Image Sensor: Sony IMX323, Video Resolution: 1080FHD (1920x 1080) 30 FPS, Lens Size: F1.5, Wide Angle: 170°, Camera Pixel: 2MP, Camera Lens: TRC – 2117, Screen size: 2.45 inch, Screen type: IPS, Screen resolution: 432x 240, Chipset: Novatek 96658
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest price update (UTC time):
Price history and price alert
Here is price history (for all/most countries) for Tecney C900 Dash Cam.
Price records source(s): Gearbest
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)).