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What is the difference between single-lens and dual-lens dash cams?

2 Answers

VonCatherine

09/04/25 5:17am

The difference between dual-lens and single-lens dash cams lies in the additional lens and different chip requirements. The specific differences are as follows: Dual-lens dash cams have an extra lens: The difference between dual-lens and single-lens dash cams is that dual-lens dash cams have an additional rear camera for monitoring the situation behind the vehicle. This allows recording both the front and rear views. Different chip requirements: Dual-lens dash cams require higher processing power from the chip. The chip is the core component of a dash cam and also the most expensive part. Therefore, a drawback of dual-lens dash cams is that the chip may not always ensure stable operation of the dual-lens system.

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SarahFitz

09/16/25 6:17am

I've been driving for over ten years and witnessed quite a few accidents. There's a real difference between single-lens and dual-lens dash cams. The single-lens type only records the front view, which is suitable for city commuting. It's affordable, costing just over a hundred yuan, and installation is super easy—just stick it on the windshield. However, if you get rear-ended or side-swiped, it's useless because it doesn't capture the full evidence. The dual-lens type, on the other hand, comes with an additional rear camera to monitor the road conditions behind you. In case of a rear-end collision or issues while reversing, you'll have solid evidence. Installation is a bit more complicated than the single-lens version, as you need to run wiring to the rear of the car, and it consumes more power. The price is also double, but it offers greater peace of mind when traveling with family, avoiding unnecessary expenses. I recommend beginners start with a single-lens dash cam, while experienced drivers or those who frequently drive on highways should opt for the dual-lens version for full coverage and safety. Regularly check the camera angles to prevent blind spots.

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