Dashcams usually require a memory card
Most dashcams rely on external memory cards to store video data, and only a few high-end models may have built-in storage. The following is a detailed analysis:
1. The necessity of a memory card
The core function of a dashcam is to continuously record driving footage, and it needs to rely on storage media to save videos. Currently, more than 90% of dashcams on the market do not have built-in storage, and must be inserted with an SD card or TF card to work properly.
If a memory card is not installed, the device usually cannot start the recording function, and some models will directly prompt "no memory card detected".
2. Memory card type and selection suggestions
Common types: Dashcams mostly use Class 4 and above SD/TF cards, and Class 10 cards are more suitable for high-definition (such as 1080P or 4K) recording needs.
Capacity recommendation:
720P quality: at least 8GB (can cover about 2 hours of loop recording);
1080P quality: 32GB~128GB is recommended (longer storage time to avoid frequent overwriting of important clips).
3. Precautions for use
Formatting required for first use: After inserting a new card into the recorder, it is recommended to format it through the device menu or the supporting APP to ensure compatibility.
Regular maintenance: After long-term use, the memory card may have read and write errors, and data needs to be backed up and reformatted regularly.
4. Special case instructions
Very few high-end dashcams may have built-in storage (such as some models with cloud storage function), but such products are usually more expensive and still require external cards to expand capacity.
Summary: When purchasing a dashcam, a memory card is a necessary accessory. You need to choose the appropriate type and capacity according to the device requirements, and pay attention to daily maintenance to ensure data security.
