With dash cams, you may find that regular SD cards tend to fail you after a couple of months. The reason for this is that dashboard cameras (being essentially like surveillance cameras that are always on) write to the SD card continuously, for long periods of time, and not all memory cards are designed for this type of heavy use.
Therefore, to maximize the reliability of your dash cam, we recommend you use a card specifically designed for heavy writing duty, ideally from a renowned manufacturer. 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 aware that an SD cards’ expected life span is proportional to its capacity though, so a 32GB card will on average only last half as long as a 64GB card. The reason is that larger cards need to endure a lower number writing cycles over a given period of time.
So while larger is generally better, the price jump from 64GB to 128GB is quite big. Also, at the time of writing this, there’s not a whole lot of high-endurance cards with a capacity of 128GB available. Therefore, the sweet spot for memory cards right now is at 64GB.