Is 8GB Memory Enough for a Dash Cam?

[GeorgeMarie]

An 8GB memory card is generally sufficient for a dash cam. If the resolution is set to 1080P, an 8GB memory card can record for about 2 hours. Here are the details: Loop recording mode: To prevent the dash cam's memory from being completely filled, most devices are set to loop recording mode. This means the recording is divided into multiple segments, and newer videos will continuously overwrite the older ones. Commonly used dash cam memory cards: The commonly available memory card capacities in the market are 8GB, 16GB, and 32GB. Additionally, as a high-speed read-write device, dash cams have high requirements for storage and read speeds. A Class 6 or higher memory card must be used to ensure smooth video storage and prevent video corruption during recording.

[DiCharles]

Previously, the dash cam I bought came with an 8GB card, and problems emerged after just two weeks of use. 1080p video consumes 1.5GB per hour, and during two hours of traffic congestion, the memory was full. The footage of a rear-end collision was even overwritten. Later, I switched to a 64GB card and found that only emergency videos locked during sudden braking wouldn’t disappear. Nowadays, memory cards are dirt cheap—a 32GB one costs just twenty bucks. There’s no need to torture yourself with an 8GB card, especially for those who frequently drive long distances. If you must use it temporarily, remember to disable unnecessary parking monitoring features to save space.

[VanKing]

8GB is really not enough to handle it. My car commutes for three hours every day, and last week the dash cam kept prompting that the storage was full. Upon checking, I found that at 720p resolution, it only stores about five hours of video, and loop recording overwrites the earliest footage. Once, I couldn't find the footage from half an hour before when my car got scratched, which left me at a disadvantage. The technician said that nowadays, 32GB is the mainstream starting point, which can store two days' worth of trips. Driving at night consumes even more memory, as video files get larger in low light conditions. It's better to just upgrade directly to avoid constantly worrying about clearing memory.

[DelKiara]

Tested personally, an 8GB card can't last more than six hours in 1080p mode. Last time while driving in the rain, it suddenly alerted me about insufficient storage, and all the crucial road footage wasn't recorded. The dashcam's loop recording works like shuffling cards, constantly overwriting old files with new ones. It's even worse if you frequently use driver-assistance features—data like lane departure warnings also takes up space. Now, upgrading to a high-speed card costs no more than a takeout meal. Why stick with 8GB and live in constant worry every day?

[SanDaniella]

It can be used temporarily, but I really don't recommend it. I tried recording at 60fps with an 8GB card, and the memory was full in just three hours. Especially when the sports mode is on, frequent emergency recordings consume even more space. Once on the highway, I encountered a road rage incident where someone cut me off, but when I went to review the footage, the crucial video had already been overwritten. Nowadays, mid-to-high-end dash cams support 4K, resulting in even larger video files. I suggest starting with at least 64GB. Memory cards from reputable brands are more reliable, ensuring your driving evidence is preserved.

[OIsaac]

Commuting folks, take my advice: 8GB can't handle city road conditions. During morning rush hour, just two hours of driving with standard 1080p recording eats up over 4GB. Last week at an intersection, an e-bike ran a red light - when I checked the dashcam, it was right when old files were being overwritten. Modern dashcams now have G-sensor locking that saves emergency braking videos separately without overwriting, but storing just ten such files fills up 8GB. Better to increase your budget for larger storage - high-speed cards also allow faster video retrieval.