Most dash cams will run just fine with any standard class 6 or class 10 SD card. All cameras support at least 32GB card capacity, some support more. Check your cam’s technical specifications (and your wallet) to see which size and class of memory card you should be getting.
However, if you’re a frequent driver, or if you use your camera’s parking mode a lot, you may find that SD cards tend to fail you after a couple of months. The reason for this is that dashboard cameras, just like security cameras, write to the SD card continuously, for potentially very long periods of time. Not all memory cards are designed for this type of heavy use.
If you’re finding yourself with frequent SD card failures, go for a card that was specifically designed for heavy writing duty. Here’s a couple of suggestions:
SanDisk High Endurance Video Monitoring Card (64GB)
- Class 10
- Up to 10,000 hours recording (that’s over a year of non-stop use)
Transcend Information 64GB High Endurance Card
- Class 10
- Maximum speed: 21 Mbps
- Designed for Full HD (1080p) video recording
- Up to 12,000 hours (that’s 500 days straight)
In case your dash camera doesn’t support 64GB cards, both of these are also available with 32GB capacity. Be advised that the SD cards’ expected life span is proportional to their capacity though, so a 32GB card will only last half as long as a 64GB card.
In short, if your cam supports 64GB cards, get one.