How Long Can a Dash Cam Store Footage?
2 Answers
The storage duration of a dash cam varies depending on the situation and can be categorized as follows: 1. A 16GB card can store approximately 100 minutes; 2. A 32GB card can store around 200 minutes; 3. A 64GB card can store about 400 minutes. A dash cam is an instrument that records images, sounds, and other relevant information during vehicle operation. The purposes of a dash cam include: 1. Preserving effective video footage in cases where accident scene evidence is unclear or destroyed, assisting traffic police in handling accidents; 2. When connected to a direct power supply, it can serve as a parking surveillance device; 3. Preventing drivers from reckless driving and reducing accident rates; 4. Protecting the legitimate rights and interests of drivers by providing valid evidence.
I think the storage duration of a dash cam mainly depends on several factors: First is the size of the memory card. For example, I use a 32GB card, which can store about 3-4 hours of HD video at 1080p resolution because it loops and overwrites, automatically deleting old footage. Higher resolutions like 2K or 4K take up more space, reducing storage time to maybe just 1-2 hours. If you switch to a 64GB card, the duration roughly doubles to 6-8 hours. Secondly, frame rate and video format also matter—normal mode saves more space than slow motion. In daily use, I set it to loop recording to avoid filling up the card, but it’s important to manually save important clips regularly in case critical footage gets overwritten during an accident. Upgrading to a larger card or a model with cloud backup can extend storage time and save a lot of hassle.
