Dash Cam Reviews – Installing 2 single-lens cameras: Yay or nay?

Do you consider between having 2 1 channel dash cams and having only 1 2 channel dash cam?

It may sound confusing. Let us break it down for you in this article.

What is a 1-channel camera?

One channel, also known as single lens, dash cams are those that can only capture videos in 1 direction, and normally attached next to or behind the rearview mirror. That’s how dash cam was first introduced as well.

In other words, it was invented to record accidents that may happen in front of your car. We have made some reviews on best single-lens dash cams such as Garmin dash cam 20, AUSDOM AD282, TRANSCEND 220.

Over time, many manufacturers decided to expand the recording range by producing 2 channel dash cam and we’ll introduce later after this. And this kind of dash cams is unable to upgrade to function as the 2 channel dash cam, so keep this in mind. Or you can do one way or another that we will talk about later also.

What is a 2-channel camera?

Two-channel, or dual-lens, dashboard cameras are those who offer 2 dash cam units that can be set up from both in front and in rear of your car. Normally, the front car camcorder unit is at the bigger size than that of the rear one because the producers want to make it less visible to others from the back. There are some good and bad points of owning this kind of dash cam in your car. And we’ll also review more thoroughly later. The typical good 2-channel dash cams are BlackVue DR650GW, Falcon Zero F360.

How about setting up 2 1-CH cameras?

So, you want to keep alert in what would happen in the rear of your vehicle as well. You may think of getting a 2-channel camera, or simply buying one more single-lens camera because you don’t want to waste your currently used camera. So, now, it’s time to discuss the benefits as well as drawbacks of having 2 one channel cameras installed in your car.


First of all, it is guaranteed that the image or video resolution would be equally at high quality. However, it doesn’t mean owning a 2-channel cameras would greatly damage your recording qualities; as we experienced, they would still be seen clearly through the rear unit of the dual-lens dash cams.

2 memory card- dash camSecondly, owning 2 1-channel dash cams would also mean having 2 seperate memory cards. Hence, you definitely have more redundant saving space from both memory cards. And when recording, you can adjust the settings as you wish. And you can even maximize the the use of other useful features such as GPS, Loop Recording, etc. When you customize the settings from the 2-channel dashboard cameras, you need to accept that it will be set for both cams.

In terms of recording, once again, having 2 1-channel dash cam seems slightly more beneficial. For instance, if your front camera, for some reasons, suddenly stops functioning, you can later take the rear camera up front to continue recording. Or, you can even swap 2 camera positions as you want; therefore, it would be more independent and reliable.


One big problem that you may encounter when installing 2 one-channel dash cams is your car USB port or power connector. It is very inconvenient for having 2 ports to only charge dash cams. Imagine when your phone dies, then it equally means that one of your dash cam will not be used since then.

Another inconvenience is how to wire your dash cams inside your cars. Apparently, you need 2 different cables to set up your dash cam and hiding your wires in the headliners or under the carpets seems impossible.

The next issue here is the saving locations of 2 dash cams. You need to keep track of 2 different saving locations from 2 distinct memory cards, and it’s quite more difficult to organize and work with. If you want to check and save them after each of your recordings, then it will be no big problem.

Last but not least, obviously, the cost of having 2  1-channel cameras is higher than that of 2 unit dash cams and the size of those 2 dash cams are similarly big, and it will be more noticeable and distracting when you put one of them on in the back of your car.


Owning 2 seperate 1 channel dash cams may not be a bad idea for having the highest recording quality. However, in terms of price, convenience, and the camcorder size, we would recommend having 2-channel dash cams if you still want to have full protection in the front and in the rear of your car. Considering all of the factors above, you definitely can make up your mind at what kind of dash cam to set up in your car.

Click Here to Leave a Comment Below 4 comments
Nathan - July 20, 2016


these sound really interesting, I’m always looking for ways to bring my insurance down. In your experience can installing 2 single-lens cameras reduce your car insurance rates?

    Alton - July 21, 2016

    We think partially yes. Because when you have a clear proof of the accidents you’re involved in that the fault is not yours, you can save some money for yourself, get lower payment afterwards.

Sam - July 21, 2016

In todays world, with all the crazy drivers, and the distracted ones as well I can see why this is a necessity. I am actually in the market for a dash cam and I am glad I found this site. Thank you for sharing.

    Alton - July 21, 2016

    Thanks for your comment and trusting our site. That’s exactly why we came up with this site, to help people be more cautious and keep track of what happens on the street. Hope you’ll find your favorite dash cam.


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