The nextbase incarcam 101 dash cam can record video at 720p with a large f20 aperture to provide crisp footage captures any detail at the very edge of a drivers vision including cars coming in from the sidechanging lanes g sensor data protection automatically senses a crash and saves the video files before during and after so they are not overwritten or corrupted you will always have a camera in the car to take still images to use as further accident evidence