Vantrue via Newegg offers its Vantrue N2 1080p Dual Dash Cam for $124.99 with free shipping. That's $75 off list and the lowest total price we could find. Features include a front camera with f/2.0 lens and 170° view angle, a rear camera with 140° viewing angle, microSD, G-sensor, and two parking modes.
Have an Android mobile device? Note that you can drop it to $109.99 when you order it via the Newegg Mobile app and checkout with Android Pay using coupon code "ANDROID6".