How to Choose a Dash Cam: Features That Actually Matter
A dash cam is cheap insurance: it records evidence if you’re in a collision, a hit-and-run or a dispute over who was at fault.
Key features
Video quality. 1080p is the practical minimum. 1440p or 4K helps with reading license plates, especially at night. Look at sample footage rather than resolution alone. Sensor and lens quality matter as much as pixel count.
Night performance. Look for good low-light sensors and HDR/WDR features so plates and signs are readable after dark.
Front only vs front + rear. A rear camera adds cost but records the more common rear-end impacts. Three-channel systems add a cabin camera, which is popular with rideshare drivers.
Storage. Loop recording overwrites the oldest footage. Use a high-endurance card and format it every month or two. Larger capacity means more history.
Parking mode. Records impacts and motion while the car is off. It normally needs a hardwire kit or a dedicated battery pack.
G-sensor. Locks the file when it senses an impact so it isn’t overwritten.
Wi-Fi/app. Lets you review and download clips without removing the card.
Installation tips
- Mount it behind the rear-view mirror so it doesn’t obstruct your view.
- Route the cable along the headliner and A-pillar for a tidy install.
- Check your state’s laws on windshield mounting and on recording audio.
Finally, check footage occasionally. A dash cam that silently stopped recording is no use when you need it.