WOLFBOX G840H Dual Camera Rear View Mirror Dash Cam


  • Front 2.5K and rear 1080P
  • Powerful QVBR encoding technology
  • 12″ IPS full touch screen
  • Parking Monitor Mode & Reversing Assistance
  • 32 GB SD Card Included
  • SKU: B08DRLY2R1
SKU: G840H Categories: , Tags: , ,


If you buy the 'like new', this product is almost brand new.
If you buy the 'good', the appearance of this product is slightly flawed, but it will never affect your normal use!


2.5K Full HD Resolution

Adopted a high-performance processor, this HD reverse mirror dash camera upgraded the resolution up to front 2.5k and rear 1080P and no need worry about over-heat like other 2.5k or 4k dash cams. With the powerful QVBR encoding technology, it saves 30% bit rate with the same image quality, no need worry about over-capacity with higher resolution. WOLFBOX G840H rear mirror dash cam also uses an ultra-high transparent optical glass mirror to prevent glare.


Unprecedented Visual Experience Both Day and Night

The front and rear lens adopt F/1.55 & F/1.8 large aperture, supports multi-level 3D denoising, removes motion smearing and color noise, supports strong light suppression and back light compensation; supports extreme light collection technology in wide dynamic scenes such as entering and exiting tunnels, night lights, etc. Makes the image bright and dark details better and provides excellent image effects even under low-light.



WDR Backup Camera

The 1080P rear camera of rear mirror dash cam adopts WDR technology, records super clear video behind the car even in rainy and foggy days. With IP68 waterproof level, you don't need to worry about rain or dust in the open air. After the red wire is connected to the positive pole of the reversing light, the screen will display the reversing line and down the view range for 15° automatically when reverse.


Intelligent Functions

The WOLFBOX G840H dual camera rear view mirror dash cam uses 12-inch large high-definition display and brand new and unique user-friendly GUI interactive design. Smarter G-Sensor function supports locking emergency videos automatically and manually (double-tap the screen). GPS function records the precise speed, direction, longitude and latitude data while driving.


*Warm Tips:

  • Please format micro SD card termly in case of locked videos occupied much capacity, release them necessarily;
  • Please check the functionality of dash cam with its all accessories before installation, if issues exist, please let us know;
  • Please use original accessories provided by us, just in case of compatible issues after using others', especially use 2 or 3 in 1 cigar socket will lead to 100% insufficient current supply;
  • Please change micro SD card〔Class10(10MB/sec) required〕 format to FAT 32 on PC if use micro SD card capacity > 32GB; ( a 32GB card is included)

Accessories Included in the Package

Accessory Function
G840H  Hardwire KitFor dash cam or other device powered by Type-C port, 5V/2A steady output, voltage input supports from 12V-24V. Compatible with almost all dash cam brands in the market.Directly to the battery for constant 24hrs/7days power to protect against theft when your car is in the parking lot.Directly to the ignition wire for power only so it can turn on and off with the ignition and you don’t have to worry about plugging in the charger, or turning the dashcam on, or any such stuff. Low voltage protection-It has a smart low voltage protection system that will automatically shut off the power to your dash cam when the battery
33Feet Rear Camera Extension Cord CableThe original rear camera cable for G840S / T10 / T10 Plus / D07 is 20 feet, this is a 33feet replacement longer cable

WOLFBOX G840H Dual Camera Rear View Mirror Dash Cam

Customer Reviews

Based on 72 reviews
Dennis J Sytsma
Can be improved, but outstanding for the price and features, easy to install

I would buy more of these for my other vehicles if had more features and options such as self-dimming when driver behind has high beams on at night and cabin Ambiant light sensor and option for rear camera to help connect trailer hitch from coupler to ball. The over speed limit does not work on mine and I had to turn the over speed reminder off or it blanked out my screen. I had one before but the firmware update caused my first one to fail and they company gave me a new one free of charge so they give good customer experience which is why I hope they improve this product in future because what they have now is outstanding if improved in future and I would buy more product from this company in future if they offered more options in future. I really like this product and this company but think it can be improved. The attached video shows the outstanding features that captured a wrong way driver.

Judge.me YouTube video placeholder
Great quality and price!

Great quality! Been using this for almost a month now without any issues. Rear camera is mounted outside of the car above the rear license plate. Only issue I have had is you need to view the video on your PC using VLC player or just use an adapter for your iPhone and go to files! Hardwire kit is great for turning off the screen with the accessory trigger wire. When looking at the files on a flash drive or on the phone there is 6 folders “Front Normal”, “Rear Normal” , “Front Picture”, “Rear Picture”,and for Hard Breaking “Front Emergency”, “Rear Emergency”.

Tip: One thing I don’t see advertised much is you double tap the screen to take a screenshot of important things!

Great product...

I had one like this before but it had some defects so I had to buy it again. I especially like this type of camera because it works both as a camera and mirror and you don't have to hang a separate camera with the mirror.
It is an easy installation with all the kit comes with it. The screen is really big of 12" and gives a perfect vision. There comes a 32 GB TF card for memory and rear camera too with all the wires and cables for installation and functioning.
It does its job pretty well. It has 2.5k dual-lens streaming media which was not there with my previous one. The picture quality is awesome. Catches every moment very sharply with both front and rear cameras and records there in it. The night vision works well, no problem is catching night moments like day ones. It is a touch screen device easy to operate with multiple functions.
Even there ia parking assistance and GPS.

Please be responsible and drive safe this can be distracting.

Please be responsible while using this product, another screen on the car can be really distracting specially when trying to figure out all this new toy can do.

Installation is pretty straightforward, thinking of getting a second one for another vehicle...
-Easy to see during the day
-Mirror is good enough when display is off
-Installation is fairly easy ( skill level 2 of 5)
-Quality at night is pretty good

-Unit is heavy, if your mirror base is not strong enough this will cause it to move or face down while driving

Mike B
Verified Purchase

This dash cam is an excellent product, and is perfect for my needs. My truck didn't have a back up camera, well, it does now!! The product is well put together and boxed nicely also. I had no problem running the wires ( have many years experience in auto) I would definitely buy this product again and recommend to friends & family!
Overall, I am beyond satisfied with my purchase

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