The size and resolution of the camera display screen will influence your watching experience. So it is suggested that you watch the video clips in the app or on the computer.
The location of the camera, the cleanliness of lens and car window, and the light transmittance of the car window all have influences on the quality of the video. So it is advised that you clean the lens and the windscreen glass before recording, and install the device properly according to the installation instructions.
Distance between vehicles, your driving speed, and different fps modes will all influence the video quality. Generally speaking, recordings will be more clear at a closer distance, a lower speed and under a higher fps mode. Also, the video quality will be influenced by the light conditions, especially when the environment is dim or dark.