What is the appropriate resolution setting for a dash cam?
2 Answers
The higher the resolution, the larger the video file size. 1080P produces relatively large video files, while 720P files are comparatively smaller. You can choose based on the capacity of your memory card - if you have a larger capacity card, you may opt for 1080P. Typically, with a 16GB memory card, 720P resolution can record approximately 200 minutes of video, whereas 1080P can only record about 100 minutes. Relevant information about dash cams is as follows: 1. Introduction: A dash cam is a device that records images, sounds, and other related information during vehicle travel. 2. Function: After installing a dash cam, it can record the entire driving process's video images and sounds, providing evidence for traffic accidents.
I think setting it to 1080P is sufficient. This resolution provides decent image quality without taking up too much space. I've tried 2K resolution, and while the image is noticeably sharper, it consumes storage cards very quickly—a 64GB card gets overwritten in less than half a day. For night driving, instead of chasing higher resolution, it's better to choose a good-quality sensor that captures clear footage in the dark. The key is to enable the HDR function so that the footage doesn’t turn completely black when passing through tunnels. Last time, I helped an old classmate adjust his dashcam and found that he had set it to 4K resolution but forgot to enable loop recording. As a result, it didn’t capture the rear-end collision during a sudden brake, wasting the high-end specs.
