M4 Quad Mirror Dash Cam, 1080P 4-Cam, 12" IPS Touchscreen
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M4 Quad Mirror Dash Cam, 1080P 4-Cam, 12" IPS Touchscreen
Description
The Acumen M4 Quad Mirror Dash Cam is a next-generation rearview mirror camera system engineered to deliver full-vehicle surveillance on city streets and rugged off-road terrain alike. Powered by a high-performance dual-chip image processor, it captures 4-channel 1080P Full HD video simultaneously - front, rear, and both sides - giving drivers a complete picture of everything around them. The starlight-grade CMOS front camera pairs a 7-layer glass lens with a 170° ultra-wide field of view, while WDR rear and side cameras cover 1.5x more ground than a standard mirror, picking up multiple lanes at once.
A 12-inch IPS touchscreen with 2.5D curved glass keeps the interface sharp and glare-free, and built-in 5.8G WiFi plus GPS make it easy to review footage, track routes, and share evidence directly from your phone. Whether you're a daily commuter, a fleet operator, or an off-road enthusiast, the M4 is built to handle the demands of real-world driving - day and night, rain or shine.
Key Features
- 4-Channel 1080P Full HD Recording: Dual-chip processor drives simultaneous front, rear, and dual side-view recording in Full HD - total vehicle coverage with no blind zone left unmonitored.
- Starlight-Grade CMOS Front Camera: 7-layer glass lens with a 170° FOV and advanced WDR plus 3D noise reduction delivers exceptional image clarity in low-light and nighttime conditions.
- WDR 180° Rear and Side Cameras: 6-layer glass lenses with 180° ultra-wide-angle coverage capture 1.5x more of the road than a standard rearview mirror, spanning multiple lanes simultaneously.
- Turn-Synced Blind Spot Display: Automatically displays and records the corresponding blind spot camera when a turn signal is activated - helping prevent collisions during lane changes and turns.
- 12" IPS Touchscreen with 2.5D Curved Glass: Large, responsive display reduces glare and delivers a smooth touch experience for easy in-vehicle control.
- 5.8G WiFi App Control: Connect your smartphone for real-time video previews, footage downloads, and sharing - no need to remove the SD card for emergency access.
- Built-In GPS Route Tracking: Records real-time location and speed data, reviewable via the app for accident evidence, route monitoring, or fleet management.
- Smart Parking Monitoring: Time-lapse 4-channel parking mode records up to 24 hours of coverage and locks collision footage automatically via the gravity sensor - essential for catching hit-and-run incidents.
- Supercapacitor Power Design: Operates reliably from -4°F to 158°F with a 9V-30V input range, making it compatible across a wide variety of vehicle brands and types.
- Up to 256GB Storage + Free 64GB Card Included: Ships with a 64GB Micro SD card and supports cards up to 256GB, with automatic loop recording and collision-triggered footage locking.
What's Included
- 12" Mirror Dash Cam
- 5-Pin 32 Ft Camera Cable
- 5-Pin 18 Ft Camera Cable (x2)
- Hardwire Kit
- Side View Camera (x2)
- WDR Rear Camera
- GPS Antenna
- Clamp
- Rubber Strap
- Card Reader
- User Manual
- 64GB Micro SD Card
Why You'll Love It
The M4 gives drivers a level of situational awareness that a standard rearview mirror simply cannot match - four cameras, one clean integrated unit, zero external connectors cluttering your cab. Its all-in-one body is built to withstand high-frequency vibrations and extreme temperatures, making it equally at home in a daily commuter sedan, a heavy-duty pickup, or a fleet van logging thousands of miles a month. The turn-signal blind spot display is the kind of feature that quickly becomes something you can't imagine driving without, especially in dense traffic or on multi-lane highways. With 24/7 loop recording, gravity-sensor collision locking, and up to 24 hours of time-lapse parking monitoring, it's always watching - even when you're not. Backed by a 24-month factory warranty, a 30-day return guarantee, and around-the-clock customer support, the M4 is a purchase you can make with complete confidence.
Product Specifications
View Product Specs
| Screen Size | 12" IPS Touchscreen |
|---|---|
| Dimensions | L12" x W3.1" x H0.9" |
| Material | ABS |
| Weight | 1 lb |
| Number of Cameras | 4 |
| Front Camera Resolution | 3840 x 2160P |
| Rear Camera Resolution | 1920 x 1080P |
| Recording Resolution | 1080P Front + 1080P Rear x3 |
| Footage Format | .MP4 |
| Picture Format | .JPG |
| Front Camera FOV | 170° |
| Rear Camera FOV | 170° |
| Front Lens | 7-Layer Glass |
| Rear Lens | 6-Layer Glass |
| Night Vision | Super WDR |
| Wi-Fi | 5.8G |
| GPS Logger | Yes |
| G-Sensor (Impact Sensor) | Yes |
| Loop Recording | Yes |
| SD Card (Included / Max) | 64GB included / Up to 256GB |
| Continuous Recording Time | 6 hours |
| Parking Monitoring | Time Lapse, up to 24 hours |
| Extension Camera Cable | 5-Pin 18 Ft / 32 Ft |
| Microphone | Built-in |
| Speaker | Built-in |
| Built-in Battery | Supercapacitor |
| Operating Temperature | -4°F to 158°F (-20°C to +70°C) |
| Power Voltage | 5V (Input: 9V-30V) |
| AMP Rating | 3A |
| Warranty | 24-Month Factory Warranty |
| Return Policy | 30-Day Return / Refund |
| Assembly / Installation | No assembly required; mounts to existing rearview mirror with clamp and rubber strap. Hardwire kit included for power. Ships standard (no freight/pallet required). |
FAQ
Will the M4 fit my vehicle?
The M4 is designed to fit most cars, trucks, and SUVs using the included clamp and rubber strap, which secure it over your existing rearview mirror. For specific vehicles like Jeep, Toyota, and Mercedes-Benz Sprinter, Acumen also offers precision-engineered vehicle-specific brackets sold separately for an even cleaner, more secure installation.
How does the turn-signal blind spot display work?
When you activate your left or right turn signal, the M4 automatically switches the display to show the live feed from the corresponding side camera in real time. This gives you an immediate view of the blind spot you're merging into, and the footage is recorded simultaneously - so you have video evidence if anything goes wrong during the maneuver.
Does the M4 work when the car is parked and turned off?
Yes. When connected via the included hardwire kit, the M4's parking monitoring mode activates when the vehicle is off. It uses time-lapse recording across all four channels for up to 24 hours, and the gravity sensor will automatically lock and save footage if a collision or impact is detected while parked - ideal for catching hit-and-run incidents in parking lots.
What SD card do I need, and does one come included?
The M4 ships with a 64GB Micro SD card right in the box, so you're ready to record from day one. If you need more storage, it supports cards up to 256GB. Loop recording ensures the camera continuously writes new footage, automatically overwriting the oldest files when the card is full - unless footage has been locked by the G-sensor.
How do I access and share my footage?
The M4 has built-in 5.8G WiFi that connects directly to your smartphone via the Acumen app. From the app you can preview live feeds, download saved clips, and share footage - all without removing the SD card from the camera. You can also use the included card reader to access files directly on a computer.
Is the M4 difficult to install?
No specialized tools or professional installation are required. The mirror unit attaches to your existing rearview mirror with the included clamp and rubber strap. Camera cables run to the rear and side cameras, and the hardwire kit connects to your vehicle's fuse box for clean, reliable power. The all-in-one integrated design means no external connector boxes or exposed wiring to manage. A full user manual is included, and Acumen provides tutorial resources on their website.
Thank you for trusting us with your order! This product is shipped directly from the manufacturing warehouse to get to customers all over the U.S. as soon as possible!
While many of our products are prepared and shipped out within 48 hours, some of our items are built to order or require custom pieces that could take 2-6 weeks to prepare before shipping! Please contact us at 888-884-2234 for a delivery ETA if you have a strict timeline.
Thanks!
Omaha Sports & Games Team
Returns & Refunds Policy
Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at service@omahasportsandgames.com.
If your return request is accepted, it will be up to you as the buyer to return the item in its original packaging, unworn and unused. You as the buyer will be responsible for paying the return shipping. We may be able to assist you in scheduling a pickup for return but the payment will still be your responsibility. You can always contact us for any return question at service@omahasportsandgames.com.
All products are subject to a minimum 15% restocking fee based on the quality of the returned product and packaging.
Items opened, tested, used, or any other non-new condition may be eligible for return based on the manufacturer's return policy.
Shipping Damages and Issues
You must inspect your order upon reception and refuse delivery if you see damage. DO NOT sign for delivery if there is apparent damage to the product. If you sign for the delivery and later claim shipping damage, there is very little we can do to help.
If your order does not require signing at delivery and is instead just dropped off at doorstep with damage, contact us immediately with photos of the damaged boxes.
If your item(s) is defective, damaged or if you receive the wrong item, contact us immediately so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, such as custom products, special orders or personalized items. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items, gift cards, or multiple product bundle discounts.