15
09 2026
Choosing a Dash Cam Memory Card
To get the most out of your dash cam, it is essential to use the right memory card. As recording resolution increases, so does the size of the generated video files. Therefore, in addition to capacity, a memory card's suitability for continuous video recording and its write speed are crucial factors.
The Lenovo R7 dash cam supports memory cards up to 128 GB and features automatic loop recording.
What Is Loop Recording?
Loop recording is a function where, once the available space on the memory card is full, the camera overwrites the oldest footage with new recordings instead of stopping the recording process. This eliminates the need for the user to manually clear the memory card frequently, allowing the camera to continue recording uninterrupted.
The system saves footage as video files of specific durations. When the card fills up, older recordings are deleted chronologically to create space for new videos.
What Are the Benefits of 128 GB Memory Support?
A high-capacity memory card allows for a longer recording history to be stored compared to lower-capacity cards. However, the total recording time may vary depending on factors such as the simultaneous operation of front and rear cameras, the selected resolution, the video compression format, and device settings.
Since the Lenovo R7 records in 2K (front) and 1080p (rear) resolution, it is important to choose a high-quality memory card capable of handling continuous writing.
What Should You Consider When Choosing a Dash Cam Memory Card?
Dash cams write data to the memory card more frequently than standard devices. Therefore, the following points should be considered when making a selection:
Maximum capacity supported by the device
Suitability for continuous video recording
Sufficient write speed
Resistance to temperature fluctuations
Use of a reliable, genuine product
The type and speed class of the chosen memory card must comply with the technical specifications outlined in the product manual.
How to Protect Important Recordings?
Since the loop recording system can automatically overwrite older videos, important footage should be backed up regularly. Essential recordings can be downloaded to a phone via the mobile app or transferred to a different storage location.
It is particularly important to back up relevant footage before it gets overwritten—especially following an accident, parking damage, or an unexpected incident.
Memory Card Maintenance
The memory card should be checked periodically to ensure recordings remain organized. If the camera fails to record, files cannot be opened, or errors occur frequently, the card's compatibility and health status should be examined.
The Lenovo R7’s 128 GB memory support and automatic loop recording system ensure a seamless and reliable dash cam experience when used with the correct memory card.