Ever wonder if a dash cam could really cover every single angle of your car? Well, the Rexing M4 4-Channel Mirror Dash Cam promises just that, and after looking into it, it seems like a seriously compelling option for anyone who wants comprehensive protection on the road. This isn’t just another dash cam. it’s a full-on surveillance system for your vehicle, offering a wide array of features that go beyond your typical front and rear setup. We’re going to break down everything you need to know about the Rexing M4, from its standout four-channel recording to its user experience, helping you decide if this is the right upgrade for your ride.
What is the Rexing M4?
The Rexing M4 isn’t your average dash cam – it’s designed to give you a complete, all-around view of your vehicle’s surroundings. Imagine a dash cam that not only watches the road ahead and behind but also keeps an eye on the sides of your car. That’s exactly what the M4 offers with its four-channel recording capability. This innovative system comes as a mirror dash cam, meaning it actually straps right over your existing rearview mirror. The whole unit features a 12-inch IPS touchscreen display, giving you a wide, clear view of the footage from any of its cameras. It’s built with a lightweight design that integrates pretty seamlessly into most vehicles, making it a discreet witness to the road.
Key Features at a Glance
Let’s talk specifics because the M4 is packed with a lot of tech:
- 4-Channel Recording: This is the big one! You get a front camera, a rear camera, and two side cameras, all recording simultaneously. This means you’re covered from virtually every angle.
- All-Around 1080p Resolution: All four channels record in 1080p resolution, which means crisp, clear footage from every direction, whether it’s day or night. Some specifications even mention a recording resolution of 2560 x 1440, so it’s worth double-checking the exact model if high resolution is a priority for you.
- 12-inch IPS Touchscreen: The large, responsive touchscreen isn’t just for viewing. it’s how you interact with the system, switch camera views, and navigate settings. It even acts as a streaming media mirror, displaying a constant feed from the rear camera to help eliminate blind spots.
- Advanced Night Vision: The M4 is equipped with industry-leading image sensors that automatically adjust exposure, and the side cameras often come with IR Night Vision for clear footage even in complete darkness.
- Built-in GPS Logger: This feature tracks your vehicle’s speed and location, providing crucial data that can be reviewed later using the Rexing GPS Player. This information can be really helpful if you ever need to provide evidence from a roadside incident.
- G-Sensor, Parking Monitor, & Loop Recording: These are standard but essential dash cam features. The G-sensor detects impacts and locks the footage, preventing it from being overwritten. The parking monitor keeps an eye on your vehicle when it’s parked, activating and recording if it senses a bump or vibration. Loop recording ensures continuous recording by overwriting the oldest unlocked files once the memory card is full.
- Water-Resistant Rear Camera: You can mount the rear camera outside your vehicle for an unobstructed view of the road behind you.
- MicroSD Card Support: The M4 supports high-endurance microSD cards up to 256GB, ensuring plenty of storage for all that 4-channel footage. Rexing recommends using a Class 10 memory card with a minimum capacity of 32GB for reliable operation.
Why 4 Channels Matter
When you think about typical dash cams, most people imagine a front-facing camera, maybe with a rear camera. But a 4-channel system like the Rexing M4 really ups the ante. It means you’re covered not just in front and back, but also on the left and right sides of your vehicle. This is a huge deal, especially if you’re concerned about:
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- Side-impact collisions: Imagine someone T-bones you or sideswipes you. Standard dual-channel cameras might miss crucial details. The M4’s side cameras are designed to capture that.
- Parking lot incidents: Those annoying dings and scrapes that happen when you’re away from your car? The M4’s parking monitor, combined with its four cameras, increases the chances of catching the culprit, especially if they hit you from the side.
- Lane changes and blind spots: The streaming media function can constantly display your rear view, helping to reduce blind spots, and the side cameras offer additional visual coverage. While the M4 specifically doesn’t widely advertise advanced driver-assist systems ADAS like some other Rexing models, the pure visual coverage is a huge advantage.
It’s like having an extra set of eyes, or rather, four sets, watching your car from every direction. This comprehensive coverage gives you a whole new level of peace of mind.
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Getting Started: Rexing M4 Installation & Setup
Getting your Rexing M4 up and running is generally pretty straightforward, but like any tech installation in a car, it helps to know what to expect.
Unboxing and First Impressions
When you first open the box, you’ll find the main mirror dash cam unit, the rear camera, extension cables for the cameras, a car power cable often with the GPS logger integrated, a USB cable, a cable management tool, and a user manual. Many users appreciate that the unit feels well-built and sturdy. Some reviews mention that while the picture quality is good, some might wish for a brighter display, but that’s often a personal preference.
The Installation Process
One of the cool things about the M4 is that it’s designed to easily mount over your existing rearview mirror using rubber straps. This makes the main unit’s installation relatively simple.
- Mount the Main Unit: Just strap the M4 over your rearview mirror, making sure it’s secure and the front camera has a clear view of the road.
- Install the Rear Camera: The rear camera is water-resistant, so you can mount it inside your rear window or outside, usually above the license plate for the clearest view. Then, run the rear camera cable to the main unit.
- Install the Side Cameras: These are typically integrated into the main mirror unit itself, or sometimes come as separate small cameras that attach to the sides. The key is ensuring they capture the desired view.
- Power Up: The M4 usually powers on automatically when plugged into a 12V accessory socket or cigarette lighter and your vehicle starts. You can also hardwire it directly to your car’s battery often requiring a separate hardwire kit, though sometimes included for continuous parking monitoring. The power cable often has the GPS logger built-in, which means one less cable to manage.
Cable Management: This is where that included cable management tool comes in handy. You’ll want to carefully route the power cable and any extension cables around your door frames and tuck them under the trim for a clean, professional look. It takes a bit of patience, but it’s worth it for a tidy installation.
Setting Up Your Cameras
Once everything is physically installed and powered on, you’ll want to dive into the settings: Rexing Dash Cam Not Recording? Let’s Get It Fixed!
- Memory Card: You’ll need a microSD card Class 10, up to 256GB recommended, though some come with a 128GB card. Insert it into the slot and remember to format it through the dash cam’s menu for optimal performance. Important: Don’t insert or remove the card while the camera is operating.
- Adjust Angles: Make sure all four cameras are aimed correctly to capture the best view. The large touchscreen lets you easily cycle through the camera feeds to check their angles.
- Basic Settings: Set the date and time, loop recording duration 1, 2, or 3 minutes are common options, G-sensor sensitivity, and enable the parking monitor if you’ve hardwired the device.
- GPS Logger: The GPS logger accurately tracks your vehicle’s speed and location. You can review this data later using Rexing’s GPS Player on your computer. Some users have noted that hardwiring might disable GPS on some Rexing models, so it’s good to check the specific manual for the M4.
While some users find the initial setup confusing, particularly with hardwiring, many find the overall installation and setup manageable, especially if they are a bit tech-savvy.
Rexing M4 Review: A Deep Dive into Performance
Alright, let’s get down to how the Rexing M4 actually performs when you’re out on the road. This is where the rubber meets the road, literally!
Video Quality Day & Night
The Rexing M4 boasts all-around 1080p recording for its four channels, which means pretty good clarity across the board. In daylight, you can expect crisp and clear footage, allowing you to easily identify details like license plates and road signs.
But what about when the sun goes down? This is often where dash cams struggle. The M4 features advanced night vision with intelligent image sensors that automatically adjust exposure. The left and right cameras are often equipped with IR Night Vision, specifically designed to capture clear photos and videos in low-light conditions, even in complete darkness. User reviews generally suggest that the night vision works surprisingly well, capturing clear footage even in challenging conditions. However, keep in mind that while it’s good, no dash cam is going to give you perfect, daylight-like clarity in pitch black conditions. Rexing V1 Loop Recording: Your Ultimate Guide to Never Missing a Moment
Audio Quality
Most Rexing dash cams, including the M4, come with an integrated microphone. This means it records audio inside your cabin, which can be just as crucial as video evidence in some situations. While specific reviews on the M4’s audio quality are less detailed, typically Rexing dash cams offer decent audio capture, though it might not be studio quality. It’s usually clear enough to record conversations or sounds that could be important after an incident.
G-Sensor & Parking Monitor
These features are non-negotiable for a modern dash cam, and the M4 delivers.
- The G-Sensor acts like a built-in guardian. If your vehicle experiences a sudden shake or impact while driving, the G-sensor detects it and automatically locks the current video segment, protecting it from being overwritten by loop recording. This means crucial evidence is secured.
- The Parking Monitor feature means your car is protected even when you’re not in it. With a proper hardwire installation, the dash cam can automatically turn on and record a short video clip if it detects vibration or impact while parked. This is super helpful for catching hit-and-runs or vandalism.
GPS Functionality
The M4 includes a built-in GPS logger that accurately tracks your vehicle’s speed and location. This data is embedded in your recordings and can be reviewed using Rexing’s dedicated GPS Player software on a computer. This information can be vital proof, for example, to verify your speed or exact location during an accident. While some user reviews for other Rexing models noted occasional issues or that hardwiring might disable GPS, the M4’s core functionality includes this important feature. Always double-check your specific model’s manual for any nuances regarding GPS with hardwiring.
App Connectivity & User Interface
The M4 features a 12-inch IPS touchscreen for easy navigation and control directly on the device. This large screen allows you to stream views from any of the four cameras and use it as an auto-backup camera when reversing.
While the M4 description on Rexing’s site mentions “WiFi & GPS” in some contexts, and other Rexing mirror dash cams like the M2 Max Pro have app connectivity for viewing and downloading files, some specific user reviews for the M4 at retailers mention a lack of app support or difficulty connecting to the Rexing app. This is an important point to clarify if app-based viewing and downloading are crucial for you. If direct app access isn’t robust, you’d typically need to remove the microSD card and view footage on a computer, which can be a bit inconvenient. Unlock More with Rexing: Your Essential Guide to Product Registration
Storage & Loop Recording
The M4 supports high-endurance Micro SD cards up to 256GB. This generous capacity is pretty important, considering it’s recording four simultaneous 1080p video streams. For reliable operation, Rexing recommends using a Class 10 card with at least 32GB. The loop recording feature ensures that once your memory card is full, the oldest, unlocked footage is automatically overwritten, so you don’t have to manually clear space. This means continuous, worry-free recording as long as the dash cam has power.
Rexing M4 vs. The Competition
Rexing has a whole lineup of dash cams, and it can sometimes feel like trying to pick your favorite ice cream flavor! Let’s see how the M4 stacks up against some other popular Rexing models, like the M2, M3, and V3, to give you a better idea of its place in the family.
Rexing M4 vs. M2
The Rexing M2 and M2 Max Pro is another popular mirror dash cam from Rexing, often featuring dual-channel recording front and rear/cabin and sometimes coming with advanced features like Blind Spot Detection BSD and Advanced Driver Assistance Systems ADAS. The M2 Max Pro, for instance, offers 4K front and 1080p rear recording.
The main differentiator here is the number of channels. While the M2 typically offers dual-channel front and rear/cabin, the M4 steps it up with four-channel recording front, rear, left, and right. This provides truly comprehensive coverage that the M2 can’t quite match. If all-around 360-degree exterior protection is your priority, the M4 pulls ahead. However, if ADAS features are more important, some M2 models might offer more in that department. The M2 often records at higher resolutions like 1440p 2K for the front camera, whereas the M4 is generally specified at 1080p all-around. What is a J1772 Adapter? Your Essential Guide to EV Charging
Rexing M4 vs. M3
The Rexing M3 is a 3-channel mirror dash cam, usually recording front, cabin, and rear views at 1080p. Like the M4, it features a 12-inch IPS touchscreen, GPS, G-sensor, and parking monitor.
The key difference again lies in the coverage: the M3 focuses on front, cabin, and rear, making it a fantastic choice for rideshare drivers or anyone who wants internal cabin monitoring alongside external views. The M4, on the other hand, drops the dedicated cabin camera in favor of two external side cameras, giving you front, rear, left, and right exterior views. So, if monitoring inside your vehicle is a high priority, the M3 might be a better fit. But if you’re looking to capture external threats from all four cardinal directions, the M4 is your go-to.
Rexing M4 vs. V-Series V1, V3, V5
The Rexing V-series like the V1, V3, V5 are generally more traditional, compact dash cams that mount directly to the windshield, rather than being a rearview mirror replacement.
- Rexing V1: This model is known for its compact design and good video quality for the price, often featuring 1080p recording and a 170-degree wide-angle lens.
- Rexing V3: The V3 is typically a dual-channel cam, often offering front and cabin recording at 1080p, with features like IR night vision and sometimes even ADAS. It’s popular for rideshare use.
- Rexing V5: This is one of Rexing’s premium, modular dash cams, often boasting 4K front recording and the ability to add different camera modules like cabin or rear.
Compared to the V-series, the M4 stands out as a mirror dash cam with four-channel recording, offering a completely different form factor and a broader exterior perspective. The V-series excels in discreet windshield mounting and often higher front-camera resolutions, while the M4 offers the integrated mirror display and unparalleled all-around external coverage. If you prefer the mirror form factor and maximum external camera angles, the M4 is clearly different from the V-series models.
Why Choose the M4?
You might choose the Rexing M4 if: Does tesla come with j1772 adapter
- You want the most comprehensive exterior coverage possible, with cameras facing every direction front, rear, left, right.
- You like the mirror dash cam form factor, which integrates discreetly and provides a large display.
- You prioritize the peace of mind that comes from knowing potential incidents from any angle are being recorded.
- The integrated GPS logger and advanced night vision are important to you for detailed incident reconstruction.
Pros and Cons of the Rexing M4
Every piece of tech has its ups and downs, right? The Rexing M4 is no different. Here’s a quick rundown of what users generally love and what might make you think twice.
Pros:
- Unrivaled 4-Channel Coverage: This is the absolute standout feature. Getting simultaneous 1080p recording from the front, rear, and both sides of your vehicle is genuinely hard to beat for comprehensive protection.
- Integrated Mirror Design: It replaces your existing rearview mirror, which often looks cleaner and less obtrusive than a separate dash cam suction-cupped to your windshield.
- Large 12-inch Touchscreen: The big IPS display makes viewing footage, navigating menus, and using it as a backup camera super easy and intuitive.
- Advanced Night Vision: With IR capabilities on the side cameras and smart exposure adjustment, it performs pretty well in low-light conditions, which is crucial for incident capture at any time.
- Essential Safety Features: G-sensor for impact detection, parking monitor for 24/7 surveillance with hardwire kit, and loop recording are all included, giving you peace of mind.
- GPS Logging: Tracking your speed and location can be invaluable evidence if you ever need it.
Cons:
- Installation Complexity: While strapping it on is easy, routing four camera cables even if two are integrated and potentially hardwiring can be more involved than a simple front-only dash cam. Some users have even sought professional installation for it.
- Potential for App Issues: Some reviews mention a lack of reliable app connectivity for the M4, which means you might have to pull the SD card to view footage, which can be a hassle. This is something to verify based on the most current software updates.
- Glare/Reflection on Mirror Screen: Like many mirror dash cams, the display can sometimes suffer from glare, or the reflection might feel slightly different than a traditional mirror, requiring a bit of adjustment for some drivers.
- Resolution: While 1080p all-around is good, some higher-end dash cams offer 4K for the front camera. If absolute front-facing detail is your top priority over multi-channel coverage, this might be a consideration.
- No Dedicated Cabin Camera: Unlike the 3-channel M3, the M4 focuses on exterior coverage, so if you need to record what’s happening inside your vehicle, you’d need a different model or an additional camera.
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Tips for Optimizing Your Rexing M4 Experience
Getting the most out of your Rexing M4 is all about a little setup and some good habits. Here are a few tips to make sure you’re always ready for anything on the road:
- Use a High-Quality SD Card: This is probably the most critical tip. With four channels recording simultaneously, your dash cam is writing a lot of data. Always use a high-endurance, Class 10 or higher microSD card from a reputable brand. Rexing recommends up to 256GB. Cheap or low-quality cards can lead to corrupted files, freezing, or recording errors.
- Format Your SD Card Regularly: Even with a good card, it’s a smart habit to format it once a month or so directly through the M4’s settings. This keeps the card healthy and prevents potential issues that can arise from continuous overwriting.
- Consider Hardwiring for Parking Monitor: If you want that 24/7 parking surveillance and G-sensor protection, investing in a hardwire kit often included or sold separately is essential. It allows the dash cam to draw power directly from your car battery and operate even when the ignition is off. Just make sure it’s installed correctly to avoid draining your battery.
- Adjust G-Sensor Sensitivity: The G-sensor detects impacts. If it’s too sensitive, everyday bumps or even closing your car door can trigger it to lock files, filling up your memory card quickly. If it’s not sensitive enough, it might miss minor incidents. Play around with the settings to find a balance that works for your driving style and vehicle.
- Check Camera Angles Periodically: Vibrations and bumps can sometimes shift your camera angles slightly. Take a moment every now and then to check the live view on the 12-inch screen and ensure all four cameras are still capturing your desired coverage.
- Download Footage Promptly: If you experience an incident, download the relevant footage as soon as possible. Whether it’s through an app if available and working reliably for your model or by removing the SD card and using a computer, securing that video is key. Don’t wait too long, as loop recording will eventually overwrite older files.
- Keep the Firmware Updated: Check Rexing’s official website periodically for firmware updates. These can improve performance, add new features, or fix bugs, ensuring your M4 is running at its best.
- Clean the Lenses: Dust, smudges, or dirt on the camera lenses can degrade video quality. Give them a quick wipe with a soft cloth now and then to ensure clear recordings.
By following these tips, you’ll maximize the protective capabilities of your Rexing M4 and feel more confident every time you hit the road.
Frequently Asked Questions
Is Rexing M4 a good dash cam?
The Rexing M4 is considered a good dash cam, especially if you’re looking for comprehensive, all-around coverage. Its main selling point is the 4-channel recording front, rear, left, right in 1080p, along with a large 12-inch touchscreen, advanced night vision, GPS, G-sensor, and parking monitor. While some user reviews mention potential issues with app connectivity, its core video capture and safety features are strong.
How do I install my Rexing M4 dash cam?
Installation involves strapping the main mirror unit over your existing rearview mirror, mounting the rear camera internally or externally, and then routing the power cable and rear camera cable neatly around your vehicle’s trim. You’ll then insert and format a high-endurance microSD card and configure settings like loop recording and G-sensor sensitivity through the touchscreen. For 24/7 parking monitoring, hardwiring is recommended. Rexing Motorized Wireless Charging Car Mount: Your Ultimate Road Companion
Does the Rexing M4 have WiFi?
While some Rexing M4 descriptions and related models hint at WiFi and app connectivity, some user reviews specifically for the M4 model at retailers have noted a lack of reliable app support. If app access is a critical feature for you, it’s advisable to check the most up-to-date product specifications or recent user experiences for the specific M4 version you’re considering.
What is the recording resolution of the Rexing M4?
The Rexing M4 typically records all four channels front, rear, left, and right simultaneously in 1080p resolution. Some specifications also list a recording resolution of 2560 x 1440, which might refer to a specific camera or a different setting, so always confirm with the latest product details.
How much storage does the Rexing M4 support?
The Rexing M4 supports high-endurance microSD cards up to 256GB. For optimal and reliable operation, Rexing recommends using a Class 10 microSD card with a minimum capacity of 32GB.
Can the Rexing M4 monitor my car when it’s parked?
Yes, the Rexing M4 features a parking monitor that, when properly connected using a hardwire kit often included or sold separately, can detect vibrations or impacts and automatically record video even when your vehicle is parked and the ignition is off. This provides 24/7 surveillance against incidents like hit-and-runs or vandalism.
What are the main differences between Rexing M4 and M3?
The main difference lies in their camera channels. The Rexing M4 is a 4-channel dash cam that typically records front, rear, and two exterior side views. The Rexing M3, on the other hand, is generally a 3-channel dash cam that records front, cabin interior, and rear views. Your choice depends on whether you prioritize all-around external coverage M4 or external plus interior monitoring M3. Rexing M1 Dash Cam Extension Cable: Your Ultimate Guide
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