How Long Can a 32GB Memory Card Last in a Dash Cam?
2 Answers
A 32GB memory card in a dash cam can record for approximately nine hours. Below is additional information about dash cams: 1. Recording: The memory card must be for a single network camera. There are two recording methods: continuous 24-hour recording and motion detection recording (only recording when motion is detected). The duration of recording differs significantly between these two methods. 2. Configuration: The length of recording is also affected by the bitrate configuration. If configured for high-definition full bitrate, the recording may only last a few days. To maximize recording duration, use motion detection recording and set the bitrate as low as possible. This can potentially extend recording beyond 30 days.
I've been using a 32GB memory card in my dash cam for almost two years, mainly for daily commutes. At 1080P resolution, it can record for about 7-8 hours. The actual duration depends on several factors: resolution setting is most critical - switching to 4K recording cuts storage time in half. The loop recording feature is also important as it overwrites the oldest files, preventing sudden storage saturation. During my frequent long-distance drives, I noticed the camera warns about storage filling up after 3-4 hours of continuous highway driving, so I recommend clearing the cache weekly. For those who often take long trips, I suggest getting a 64GB card - the price difference is minimal but it stores more accident evidence footage.
