WOLFBOX G840H Mirror Dash Cam REVIEW: An In-Depth Look After Extensive Use

Life on the road can be unpredictable. Like many drivers, I’ve had my share of close calls and frustrating incidents. It wasn’t long before I realized I needed an extra layer of security, something that could serve as an impartial witness in the event of an accident or dispute. Without one, proving what happened on the road could become a complicated and stressful nightmare, potentially leading to unfair blame or financial loss. I knew a reliable recording device would have saved me a significant amount of grief and uncertainty.

Important Points Before Investing in a Mirror Dash Cam

Anyone considering purchasing a mirror dash cam is typically looking to enhance their driving safety and security. This category of product solves the problem of insufficient visual evidence in traffic incidents and can also improve rear visibility. The ideal customer is someone who drives frequently, values peace of mind, and wants to upgrade from a standard rearview mirror or lacks a built-in backup camera. It’s great for commuters, delivery drivers, rideshare operators, or simply anyone who wants documentation of their journeys. This type of device might not be for someone who rarely drives or has an advanced integrated system already, as installation requires some effort and wiring. Before buying, you should consider factors like video resolution (both front and rear), screen size and clarity (especially for use as a mirror replacement), essential features like loop recording, G-sensor, and parking monitor, included accessories (like a memory card and GPS), and ease of installation. Compatibility with your vehicle’s existing mirror mount or the availability of alternative mounting solutions is also key.

Introducing the WOLFBOX G840H

The WOLFBOX G840H is a 12-inch mirror dash cam system designed to replace or strap over your existing rearview mirror, offering both front and rear video recording capabilities. Its primary promise is to provide wide, clear visibility and reliable recording for evidence and enhanced driving awareness. When you purchase the WOLFBOX G840H, you get the mirror unit itself, a 1080P backup camera with mounting hardware, a lengthy 20 ft cable for the rear camera, an 11.5ft car charger, an external GPS antenna, and a 32GB microSD card to get you started right away. It’s designed for drivers who want a large, touch-screen display for improved rear visibility and integrated front recording without adding another device to their windshield. It’s less suited for someone who prefers a traditional reflective mirror experience exclusively or doesn’t want to run wires through their vehicle.

Here’s a quick look at the pros and cons I’ve observed over time:

Pros:
* Large 12-inch touchscreen display provides excellent rear visibility.
* High resolution (2.5K front, 1080P rear) captures clear details.
* Effective night vision technology improves low-light performance.
* Includes necessary accessories like a 32GB card and GPS module out of the box.
* Reliable loop recording and G-sensor collision detection.

Cons:
* Glare can sometimes make the screen difficult to view, especially in bright sunlight or at night with strong headlights.
* Takes a few seconds to boot up after starting the car.
* Night vision, while good, may still struggle to capture license plate details at a distance in very dark conditions.
* The mirror functionality (reflection) is limited when the screen is on.

Diving Deeper: Features and How They Help

Having used the WOLFBOX G840H for an extended period, I’ve come to appreciate its core features and how they contribute to a safer and more documented driving experience.

Large 12-inch Touchscreen and High Resolution:
One of the most striking features of the mirror dash cam is its massive 12-inch touchscreen display. This isn’t just for show; it fundamentally changes your rear visibility. Unlike a standard rearview mirror, the digital feed provides a much wider field of view, often capturing areas that would be blind spots. The size makes it easy to see what’s happening behind you at a glance. Paired with the high resolution – 2.5K (1440P) for the front camera and 1080P for the backup camera – the image quality is excellent. During the day, details like license plates (when close enough) and road signs are clear. This high resolution is crucial because, in the event of an incident, clear footage is invaluable evidence. The larger screen also means the touch controls are spread out and easier to use while driving compared to smaller dash cams. The QVBR encoding technology mentioned in the description seems to work; I haven’t run into storage issues despite the higher resolution, and the file sizes feel manageable.

Excellent Visual Experience & Night Vision:
The WOLFBOX dash cam boasts features like F/1.55 and F/1.8 large apertures and WDR (Wide Dynamic Range) technology. In practice, this translates to significantly improved video quality in challenging lighting conditions. WDR helps balance bright and dark areas in the frame, which is particularly useful when exiting tunnels into bright sunlight or driving towards a sunset. The multi-level 3D denoising works well to reduce graininess in low light. Extreme light collection technology helps prevent the image from being completely blown out by bright headlights at night, although, as noted in the cons, powerful direct headlights can still impact visibility on the screen. Overall, the night vision performance is impressive for a rear view mirror camera at this price point; you can generally see vehicles and obstacles clearly behind you, though reading distant license plates at night remains a challenge, a common limitation for many dash cams.

Included Accessories: 32GB Card and GPS Module:
It’s a small thing, but having a 32GB microSD card and the GPS module included in the box is a real plus. Many dash cams require you to purchase these separately, adding to the cost and hassle. The included card is sufficient to get you started, and the GPS module is fantastic. It records your speed, direction, and location data alongside the video footage. This extra layer of data can be vital evidence, confirming your speed and position at the time of any event. The included GVPLAYER software for reviewing footage on a computer makes it easy to see the GPS data overlaid on the video.

Essential Recording Features: Loop Recording, G-Sensor, Parking Monitoring, Reverse Assist:
These are standard for modern dash cams, but the WOLFBOX G840H implements them effectively. Loop recording ensures that the camera continuously records without running out of space by overwriting the oldest files once the memory card is full. The G-sensor detects sudden impacts or collisions; when triggered, it automatically locks the current video file, preventing it from being overwritten by loop recording. This ensures that crucial footage is saved. The parking monitor acts as a surveillance system while your vehicle is parked. If the G-sensor detects a jolt (like someone hitting your car or attempting to break in), the camera wakes up and starts recording, providing evidence of hit-and-runs or vandalism. This requires connecting the camera to a constant power source, typically through a hardwire kit (sold separately), but the peace of mind it offers is significant. The reverse assist feature is particularly useful if your vehicle doesn’t have a built-in backup camera. When you shift into reverse (requires correctly connecting the rear camera’s red wire to your vehicle’s reverse light power), the screen automatically displays the rear camera feed with customizable parking guidelines, making parking much easier and safer.

Built-In WiFi:
The WiFi feature allows you to connect your smartphone to the dash cam wirelessly via the WOLFBOX app. This is incredibly convenient for viewing or downloading recorded videos without needing to remove the microSD card and use a computer. It’s a local connection, essentially turning the dash cam into a temporary WiFi hotspot, rather than connecting it to your home network or the internet, but for quickly accessing and sharing footage on the spot, it works very well. This bypasses the need for a card reader and makes managing your files much simpler.

Built-In Supercapacitor:
Instead of a traditional lithium-ion battery, the WOLFBOX G840H mirror dash cam uses a supercapacitor. This is a notable advantage, especially if you live in areas with extreme temperatures. Supercapacitors are far more resistant to heat and cold than batteries, reducing the risk of overheating, swelling, or failure in harsh climates. This also typically leads to a longer lifespan for the device compared to battery-powered models. When you turn off the car, the supercapacitor provides just enough power to safely save the current recording before the unit shuts down.

Waterproof Rear Camera:
The included rear camera is fully waterproof, which is essential as it’s typically mounted outside the vehicle, often above the license plate. This ensures it continues to function reliably regardless of weather conditions, be it rain, snow, or car washes. The durability of the rear camera housing and its ability to withstand the elements mean you don’t have to worry about performance degradation due to moisture exposure.

Speed Warning Feature:
While not heavily advertised, one user mentioned a feature that allows you to set a speed limit warning. If you exceed the set speed, the dash cam emits an audible alert. This is a handy little addition for drivers who want an extra reminder to stay within legal speed limits, contributing to safer driving habits.

What Others Are Saying

Having spent considerable time with this device, I also looked at feedback from other users online. It’s clear that many share my positive experience, particularly regarding the excellent picture quality during the day and the wide view provided by the large screen. Users frequently praise the night vision capabilities, noting that it significantly improves visibility compared to a standard mirror, although some acknowledge the difficulty with license plates in the dark. The ease of installation, often aided by online resources like YouTube videos, is also a common theme, saving users money on professional fitting. The helpfulness of WOLFBOX customer service is also highlighted by multiple reviewers.

Final Thoughts and Why This Could Be Right for You

Uncertainty on the road, whether from accidents, disputes, or just wanting better visibility, is a problem that needs a reliable solution to prevent stressful complications. The WOLFBOX G840H offers several compelling reasons why it’s a great fit to solve this. Firstly, its combination of high-resolution front and rear cameras with a large, clear display provides vastly improved recording capabilities and enhanced rearward visibility compared to a standard mirror. Secondly, the inclusion of essential features like the robust supercapacitor, reliable loop recording, and parking monitor offers peace of mind and dependable performance. Finally, coming with necessary accessories like the 32GB card and GPS makes it a ready-to-go package. If you’re looking for a comprehensive WiFi mirror dash cam front and rear system that upgrades your rearview experience and acts as a vigilant witness, the WOLFBOX G840H is definitely worth considering. Click here to check the product out for yourself.