How Much Dashcam Recording Time Fits on 64GB, 128GB, and 256GB Cards?

TL;DR: A 64GB card can typically store 4–6 hours of dashcam footage, 128GB doubles that to around 8–12 hours, and 256GB can hold up to 16–24 hours, depending on resolution and bitrate.

Top picks for dashcams

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Best Pick

Nexus 5S

$399.99

4-Channel Full Coverage Four STARVIS 2 Sensors LTE Connectivity 10s Buffered Pre-Recording Motion Detection.

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Best Value

Nexus 4 Pro S

$379.99

Triple STARVIS 2 Sensors 3-Channel 4K+1080P+2.5K Recording PlatePix™ License Plate Capture Optional LTE Live Monitoring

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E360 ACE

$299.99

Front and Cabin: 5.2K 360-degree panoramic recording, Sony STARVIS 2 IMX675 Sensor, Quad-Core CPU offers greater efficiency Multiple recording modes 8 Infrared LED lights improve night vision capability.

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Quick overview

• Storage capacity directly impacts recording duration — higher capacity means longer recording time without overwriting.
• Video resolution and bitrate are critical; 1080p at 30fps requires less space than 1440p or 4K footage.
• Loop recording means older videos are overwritten once the card fills up, so larger cards reduce how often you need to manage footage.
• Use dashcam-specific microSD cards designed for durability and continuous writing, such as those from SanDisk High Endurance or Samsung PRO Endurance.

What to look for in Canada

When choosing a memory card for your dashcam in Canada's diverse climate, durability and reliability are paramount. Dashcams are subject to wide temperature swings, from freezing cold in winter to hot summers, especially if your car is parked outside.

Look for microSD cards rated for extended temperature ranges (at least -25°C to 85°C). High Endurance or PRO Endurance models are tailored for continuous writing and can handle the frequent rewrites dashcams perform. This means less chance of card corruption or failure.

Parking mode is another important consideration. If your dashcam supports parking mode—recording events when the car is off—larger storage capacity can be valuable because this mode often records at a higher bitrate or slower frame rates over long periods, thus consuming more space.

Installation-wise, if you’re buying for a Canadian driver who spends a lot of time outdoors, ensure the dashcam and card are secured inside the vehicle where heat buildup is minimized. Avoid cards from unknown brands or standard consumer cards not rated for dashcam use.

My recommendation

If you primarily do local driving around urban areas and don’t need to review footage often, a 64GB card is a practical starting point. It offers 4 to 6 hours of solid 1080p footage, which covers most daily commutes and drives without constant maintenance. Choose a High Endurance card for reliable performance.

If you want more peace of mind for longer trips or highway driving, go for 128GB capacity. This gives you roughly 8 to 12 hours of video storage, useful if you want to keep footage for several days before overwriting happens.

For professional drivers or those with parking mode enabled extensively, a 256GB card is ideal. With this size, you can store 16 to 24 hours of continuous driving and parking footage, reducing the risk of losing important videos. Make sure your dashcam supports large capacity cards (some older models cap at 128GB).

Finally, always purchase dashcam-grade microSD cards from trusted retailers in Canada to avoid fake or low-quality products, which can fail quickly and result in lost recordings.