Love it! Thank you!

I like it

Estuve en un accidente y por fortuna tenía esta cámara en mi caro , se grabó todo el accidente y me salvó con la aseguranza.

If you own a Jeep, this is precisely what you need. It fits beautifully and gives you all the vision you need when combined with the license plate camera!

This Acumen M4 rearview mirror dash cam system delivers a notable upgrade in both video quality and driver awareness. With sharp 4K front recording and a wide 2.5K rear view, it’s especially useful for highway driving and detailed plate capture. Night vision is strong thanks to WDR and 3D noise reduction, and installation is relatively simple for a unit with integrated GPS, Wi-Fi, and touchscreen controls.

The 12-inch IPS display is responsive and intuitive, with swipe-based controls and real-time views. The mirror mount looks clean and blends well with most interiors. One standout feature is the fast Wi-Fi file transfer—grabbing clips to your phone takes seconds, making it practical for quick access after incidents.

Although it's advertised as a 2-channel model, the M4 also supports expanded coverage in the QUAD version, offering optional side-camera integration for full blind-spot monitoring. For those who commute regularly, the built-in GPS and parking surveillance mode are added bonuses. The included 64GB card is a solid start, though upgrading to 128GB or more is advisable for extended trip recording.

Overall, this is a well-executed product that enhances visibility and peace of mind. Ideal for cars, trucks, or even high-end vehicles where a clean look and reliable footage matter. Highly recommended for those seeking a modern dash cam upgrade. :)

Just got it in today packaged well cant wait to get it installed.

I replaced the rearview mirror in my motorhome with a Legend 2 channel. I added the Sony 307 WDR to extend to the back of the trailer I tow to give me an excellent view behind me. It works great!

A little delayed delivery, but other than that great product and easy replacement!

So far I love it. Wish there was a way to shorten the wires. Since I put in a sxs. And have very little places to hide it all.

Great item. Cured my night driving problems.

I first purchased XR10 in 2018 and it lasted me for 5+ years. I was contemplating if I should upgrade because the XR10 was still good in use. I decided to upgrade to the M4 QUAD because of the blind spot detection and the side camera. It allows me to be more alert of my surroundings and really helps me with my parallel parking! I can now see if anyone had door-ding my car. The best part is the wifi connection that I did not have with the XR10. The download speed to my phone is so fast. It literally downloaded in a few seconds! I am very pleased with this product and gives me more security and assurance that I would be able to video on all 4 sides of my car!

I first purchased XR10 in 2018 and it lasted me for 5+ years. I was contemplating if I should upgrade because the XR10 was still good in use. I decided to upgrade to the M4 QUAD because of the blind spot detection and the side camera. It allows me to be more alert of my surroundings and really helps me with my parallel parking! I can now see if anyone had door-ding my car. The best part is the wifi connection that I did not have with the XR10. The download speed to my phone is so fast. It literally downloaded in a few seconds! I am very pleased with this product and gives me more security and assurance that I would be able to video on all 4 sides of my car!

Certified installer @flikslighting

Got myself this Acumen M4 2ch for my Lambo, and its mindblowing to the point that I can see all the blind spots way better now. The video quality is super clear, and it was easy to install without messing up my cars look. I have used other brand before, but the installation looks more clean and easy on this one．

I love this M4 Quad, I got this mirror this past week as a gift. It really enhances my side view blind spots when I changed lanes. Especially on the freeway! I was side swiped last month and the person fled the scene. If I had this back then I would have gotten the person! I tried many other brands of the mirror dash cameras but they are not as clear and wide angled as this one! It really captured the license plate even at high speed. This is the only camera that really makes me feel safe when I change lanes. I am def gonna refer this mirror to everyone.