What size memory card is generally used for a dash cam?
2 Answers
Generally, a 64GB memory card is used for dash cams. The required memory capacity depends on factors such as the duration of each drive, the maximum memory capacity supported by the dash cam, and the video resolution of the recordings. Longer driving times require larger memory capacities, and higher resolutions also consume more memory. A dash cam is a device that records images, sounds, and other relevant information during vehicle operation. After installation, it can capture the entire driving process in video and audio, providing evidence in case of traffic accidents. Different dash cam products may have varying appearances, but their basic components typically include: a main unit, speed sensor, data analysis software, and an infrared camera, which is an essential component for night vision functionality.
I've been driving for fifteen years and have used multiple dash cams. The memory card size really depends on your needs. I used to have a 16GB card, which would fill up after just three hours of 720p recording—definitely not enough. Later, when I upgraded to 1080p, I switched to a 32GB card, which could record about eight hours, sufficient for city driving. Now, with my new dash cam supporting 4K, I directly opted for a 64GB or 128GB card, storing over ten hours of footage, ensuring all evidence is retained in case of an accident. Loop recording is a great feature, but larger capacity helps prevent overwriting risks. I recommend starting with at least 32GB and choosing UHS-I or Class 10 cards to ensure smooth writing. Also, remember to format the card monthly to extend its lifespan.
