Dash Cams 101: What to Look for Before You Buy
A dash cam is one of the cheapest forms of protection you can add to your car — useful for insurance claims, disputes at accident sites, and just having a record of your drive. Here's what the spec sheet actually means.
Single-channel vs dual-channel
A single-channel dash cam records only the front view. A dual-channel (front + rear) camera also covers what's happening behind you — useful for rear-end collisions and reversing incidents. If your budget allows it, dual-channel gives much more complete coverage.
Resolution
Higher resolution (1080p and above) makes a real difference when you need to zoom in on a number plate after an incident. Don't assume higher megapixels always means a clearer picture in low light, though — sensor quality matters just as much as resolution.
Night vision / low-light performance
Since a lot of driving happens at dusk, at night, or in Indian cities with inconsistent street lighting, check for cameras that specifically mention good low-light or night recording performance, not just a high daytime resolution number.
Parking mode
Parking mode keeps the camera recording (or motion-triggered) even when the car is off and parked, which is exactly when hit-and-runs and break-ins tend to happen. This usually needs a hardwire kit connected to your car's battery, since it draws power while the engine is off.
Storage
Dash cams record in a loop, overwriting the oldest footage once the memory card fills up, unless a clip is locked (usually triggered automatically by a sudden impact). A larger, higher-endurance microSD card means more footage retained before older clips get overwritten.
Installation
Front dash cams are usually a straightforward mount-and-plug job. Rear cameras and hardwired parking mode kits are a cleaner install if run through your car's interior trim rather than left exposed — worth having done professionally if you're not comfortable routing cables yourself.
Browse dash cams and reverse cameras in our Car Camera collection.