How Much Memory Does a Car Dash Cam Memory Card Need?
3 Answers
Generally, you should choose 16GB or 32GB. If you want to record more videos or require higher resolution, then 64GB or more is needed. Below is a related introduction about dash cam memory cards: 1. Card Speed: Dash cams require the use of Class10 high-speed memory cards. Class10 only represents the read speed, but what the dash cam needs is the card's write speed. However, current dash cams don't record that fast, so the write speed of Class10 products is generally sufficient. 2. Capacity: This depends on the dash cam's user manual: it will specify what type of card is compatible and the maximum capacity supported. Typically, TF/SD cards are used, possibly mini versions. Just ensure the card size doesn't exceed the device's capacity.
I've been using a dash cam for five years and found that the size of the memory card mainly depends on usage habits. For regular commuting, a 64GB card is sufficient, storing about 30-40 hours of 1080P video. If you frequently take long trips or prefer high-definition recording, it's better to opt for a 128GB card. Also, note that parking surveillance mode consumes a lot of space—I once tried a 32GB card, and it overwrote important footage in less than a week. When buying a card, choose a high-speed one; otherwise, recording 4K video may lag. It's advisable not to skimp on this, as it directly affects the preservation of crucial evidence in critical moments.
Most dash cams nowadays support loop recording, but using a small memory card can easily cause issues. I once encountered a situation where my 32GB card got full, causing the device to shut down automatically, almost missing crucial accident evidence. Now I use a 128GB card in my car, which can record about 80-90 hours of footage. Also, pay attention to video formats - H.265 encoding saves space while older formats take up more. Friends who frequently drive to construction sites should regularly clean their cards, as dusty environments can damage them. Only with sufficient capacity can you ensure important clips won't be overwritten.
