How many days of content can a dash cam generally record?
2 Answers
Automobile dash cams can generally retain recordings for about 3 to 7 days, with larger memory capacities allowing for longer storage durations. A dash cam is an instrument that records images, sounds, and related information during vehicle travel, consisting of a main unit, speed sensor, and data analysis software. Based on installation methods, automobile dash cams are categorized into rearview mirror dash cams and data dash cams. A dash cam records images, sounds, and related information during vehicle travel. Once installed, it can capture the entire driving process in video and audio, providing evidence for traffic accidents and serving as parking surveillance. The recorded video footage must not be edited; tampering with the footage may render it useless in the event of an accident, and it also helps prevent unavoidable fraudulent claims prevalent in society today. The functions of a dash cam include protecting the legal rights of drivers, enabling quick and accurate accident resolution through playback of recorded footage, reducing the occurrence of accidents, and serving as a tool to document scenic routes during road trips.
My dash cam uses a 64G card, and during my daily two-hour commute, it can store about three to four days of footage. However, everyone's situation is different. My neighbor, who drives long distances for seven to eight hours daily, can only use the same card for two days. Video quality and compression methods are crucial. For example, 4K ultra-high-definition takes up a lot of space, halving the storage time when enabled. It's best to choose a device with H.265 format, which can save 30% space at the same quality. Once full, it automatically overwrites the oldest videos, so important footage should be backed up to a phone promptly.
