What size memory card is needed for a dash cam?
2 Answers
Generally, a dash cam requires a 16GB or 32GB memory card. If you need to record more videos or require higher resolution, a 64GB or larger card is recommended. Common memory card capacities available in the market for dash cams include 8GB, 16GB, 32GB, and 64GB. Key considerations when selecting a dash cam: video resolution and recording mode. Video resolution: When choosing a dash cam, the first thing to consider is its video resolution. It should be able to clearly capture pedestrians' faces or vehicle license plate numbers. Typically, a 1080P resolution is sufficient. Lower resolutions may produce overly blurry footage with limited value, while excessively high resolutions consume too much storage space, leading to frequent memory card replacements and unnecessary hassle. Recording mode: In addition to resolution, it's important to select a dash cam with loop recording. When the memory card is full and not replaced in time due to oversight, critical incidents may go unrecorded. A dash cam with loop recording can overwrite old footage with new recordings when the memory card is full, ensuring no potential event is missed.
The memory card capacity for a dash cam depends on how much you drive each day. I usually drive two to three hours daily, and a 64GB card is just enough to store two days of HD video, which can be retrieved in case of an accident. Many dash cams now feature loop recording, automatically overwriting old footage when the card is full. However, for safety, I recommend starting with at least 64GB. Especially for dash cams supporting 4K recording, video files are enormous—128GB can only store about six to seven hours. Also, opt for high-speed cards; U3-class cards are necessary to keep up with HD recording speeds, as cheaper, slower cards may drop frames. Don’t skimp on capacity—running out of space and losing critical footage when you need it most would be disastrous.
