In simple words
A dashcam is a camera that records the road, and in some models the cabin and the rear. It keeps a video record of the journey.
Step by step
The camera is fixed behind the windscreen
It powers on with the vehicle
It records video in a loop on a memory card
The G-sensor locks the clip on an impact
4G models also send location and live view
Limits to know
Footage quality depends on lens, light and fitting position. Back up important clips.
Questions we hear often
Does a dashcam stop accidents?
No. It records. AI models also warn the driver.
How much footage can I keep?
It depends on card size. Older clips are overwritten.
Is cabin recording allowed?
Follow privacy rules and tell passengers.