WOLFBOX G840S 12" 4K Mirror Dash Cam Backup Camera, 5.8GHz WiFi Smart Rearview Mirror for Cars & Trucks, Front and Rear View Dual Cameras, Night Vision, Parking Assistance, Included 32GB Card & GPS
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Availability:
20 left in stock
Arrives
Wednesday, May 20
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Features
- UPGRADED 4K UHD CLARITY - Experience stunning detail with the front camera's upgrade to 4K UHD (2160p) resolution, paired with a 1080p rear camera. The extra-large 12" display provides 1.5 times the viewing area of a standard mirror, significantly reducing blind spots for enhanced safety.
- 5.8GHz WiFi&GPS TRACKING - The included external GPS antenna enables real-time GPS data display directly on the dash cam. Connect to your phone via Wi-Fi and use the "WOLFBOX" app on iOS or Android devices to real-time viewing, playback recordings, and quick sharing of videos.
- LARGER SCREEN & WIDER VIEW - The WOLFBOX G840S mirror camera features a 170 front lens and a 140 rear lens, offering a broader field of view to minimize blind spots during driving and reversing. The smart split-screen function allows simultaneous monitoring of both lenses, while the 2.5D curved screen seamlessly integrates with your vehicles interior.
- SUPERIOR NIGHT VISION & IMAGE QUALITY - The G840S mirror dash camera is equipped with an upgraded low-reflectivity LCD to reduce daytime reflections. With incorporated WDR & HDR technology for balanced lighting, and a professional-grade sensor paired with a 6-glass lens for superior image quality, nighttime driving or challenging lighting conditions are handled with ease.
- 24-HOUR PARKING MONITOR - Beyond on-the-road safety with loop recording, the WOLFBOX camera also features a 24-hour parking monitor. Time-lapse mode records at a low frame rate to conserve power and storage while ensuring continuous surveillance of your vehicle. (A hardwire kit is required for parking monitoring.)
- DEPENDABLE AFTER-SALES SUPPORT - WOLFBOX provides attentive customer service to help resolve any questions or problems you may encounter. The rearview mirror dash cam comes with a 12-month guarantee, ensuring consistent performance all year round. Please use only original brand accessories. Damage to the product, vehicle, or related losses caused by the use of non-original accessories, improper installation may not be covered by the guarantee or replacement service.
Brand: WOLFBOX
Model Name: G840S
Vehicle Service Type: Bus, Car, Minivan, Truck
Connectivity Technology: USB
Special Feature: Built-In Display, Built-In GPS, Built-In Speaker,Built-In Supercapacitor, Compact Design,G-Sensor,Loop Recording, Internal Memory,Night Vision,Touch Screen, Parking Monitor,Reverse Assist,Mute Function See more
Video Capture Resolution: 2160p
Included Components: 1080P Backup Camera with screws and 3M tape, 11 feet Car Charger, 32GB Card(in the dash cam card slot), 4K Mirror Dash Cam, External GPS antenna See more
Mounting Type: Rearview Mirror Mount
Color: Black
Field Of View: 170 Degrees
Compatible with Vehicle Type: Bus, Car, Minivan, Truck
Connectivity Technology: USB
Other Special Features of the Product: Built-In Display, Built-In GPS, Built-In Speaker,Built-In Supercapacitor, Compact Design,G-Sensor,Loop Recording, Internal Memory,Night Vision,Touch Screen, Parking Monitor,Reverse Assist,Mute Function
Video Capture Resolution: 2160p
Mounting Type: Rearview Mirror Mount
Field Of View: 170 Degrees
Control Method: Touch
Screen Size: 12
Flash Memory Type: card
Maximum Aperture: 1.8 f
Auto Part Position: Front Inside
Are Batteries Included: No
Display Type: LCD
Supported Standards: TS
Memory Slots Available: 1
Compatible Devices: Car, Bus, Minivan, Truck
Frame Rate: 30 FPS
Real Angle of View: 140 Degrees
Included Memory Card Size: 32 GB
Auto Part Orientation: Front & Rear
Brand: WOLFBOX
Model Name: G840S
Built-In Media: 1080P Backup Camera with screws and 3M tape, 11 feet Car Charger, 32GB Card(in the dash cam card slot), 4K Mirror Dash Cam, External GPS antenna
Manufacturer: WOLFBOX
UPC: 708111275712
Model Number: G840
Mfr Part Number: G840
Item Type Name: WOLFBOX Mirror Dash Cam Backup Camera,12" IPS Full Touch Screen,1296P HD Dual Lens Smart Rear View Mirror for Cars & Trucks, Sony IMX335 HDR Stream Media with Night Vision & LDWS, Free 32GB TF Card
Unit Count: 1.0 Count
Warranty Description: 1
Color: Black
Item Dimensions D x W x H: 18.9"D x 13.78"W x 10.24"H
Item Weight: 830 Grams
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, May 20
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
This is the best dash cams I've owned the quality of the video and ease of use is pretty darn good. ease of installation is really dependent on the type of vehicle you own and the type of installation you want to do. Do you want all the wires neatly tucked away and hidden or do you want to use the sticky cable retention pieces that are in the box and make it easier. And obviously you can always pay a professional to install. I have three things that I would like to see improved on newer models / 2.0 1. The power button needs to have some kind of isolating rubber around it or be fixed in place. I have 2 different units and all both of them the button vibrates if the road is rough and gets picked up by the two microphones that are on both sides of the power button. The fix is just put a piece of tape over the power button not tight enough to depress it but enough to stop it from moving around. Wolfbox customer service sent me a replacement unit but it did the same thing the power button is a little loose and gets picked up by the microphones. 2. Wolfbox phone app, I have Android so I can't speak to the experience on iOS however for some reason it doesn't allow me to edit the video in the software it keeps saying that this function is not supported when I go to save. It also creates two file locations. one file of the video will be found in the wolfbox app, another one in my Google photos file. However I can't access the Google photos one as it is blank and says cannot be played until I delete the one in the wolfbox app then the one in the Google photos app works fine and can be played then. If I delete the one in the Google photos app first it deletes the one in the wolfbox app kind of confusing but I figured it out. Also sometimes playback in the wolfbox app is laggy. 3. This isn't in regards to the camera specifically but to the OEM wolfbox mounts. I have the Jeep one but reading reviews the one that attaches to the window Puck does the same thing. The plastic is pretty thin that mounts to the back of the camera unit it allows vibration into the unit and that can slightly be seen on playback. Overall this is the best camera system I've used it's really nice.. I know some of the stuff I say to the above is some nitpicks I also would like to see the 10-in have the OEM Mount support. I have a 12-in unit and in a jeep my sun visors will hit the unit because it's so wide. I probably would have purchased the 10-in fir the jeep if it could be mounted to the OEM brackets from Wolfbox but for some reason they cannot. I would definitely buy again I've already bought two of them hopefully in a revision they fixed some of the minor issues that I have come across. I also like to see the tri camera unut not be so expensive I really would have liked to get the tri bumper but not for an extra $250 and all it's adding is one camera the front bumper. Also in closing I've been in contact with wolfbox customer service support. Their customer service is probably some of the best I've ever experienced they reply on weekends during the night during the day like they must have somebody on 24-hour customer support. They provided possible solutions to the issues. Some of the suggestions work some of them did not however the unit is still an amazing dash cam it's aesthetically pleasing and an extremely well-functional.
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Reviewed in the United States on June 8, 2025 by Sabre39
First of all, this product is and does exactly what they claim it does. The 12" view display is VERY sharp and clear (with a couple of reservations I will address later), the wide angle lenses show everything and more, the GPS is accurate, and the rear-facing camera works very well, especially if you hook up the wire to the backup light so the unit displays the (adjustable) backup lines. Very useful in parking lots! The variety of settings and adjustments are impressive and useful. All-in-all, a really nice product. Now... here's some things I feel you should know.... First, I'm no expert in dashcams. I actually tried an inexpensive windshield mounted one, and it was okay, but I thought it used up too much windshield "square footage" and was a little distracting next to the rear view mirror - the only place I could fit it. Which led me to the units that fit on the existing rearview mirror. MUCH better for what I wanted. I originally just wanted the forward-looking camera and resulting recording, but the GPS was so easy to install, so I did that. Then, after some thought, I wanted to install the rear-looking camera. If you have a sedan with a trunk, this will be very easy. I don't have that. I have a 2009 Ford Escape, a smallish SUV style with a full hatchback as well as a window that opens. Lots of pivot points and moving parts. To get to the license plate light (the recommended routing and placement for the camera), I would have to nearly destroy the inside plastic panel covering the tailgate to route the wiring. And there was no good place inside the glass. So where? It ended up on the outside top driver's side corner of the hatch in line with the luggage rack frame - for a little protection. Not happy with that, but it works, and it's not the manufacturer's fault. Just beware if you have something other than a sedan. You may have to get creative. Another issue is nighttime rear view. The flare from the camera at night is fierce, and not at all useful for viewing out on the highway. In a lighted parking lot, it's fine. Great, even. Also, rain and snow. Just okay, but nothing unexpected or a design fault. It is what it is. Now, one other thing, and it's not a design fault, it's a part of what this device is... Think about it... You strap on this gadget that has a camera pointed straight forward onto your rear view mirror. It has a polished glass surface that is excellent for use as a rear view mirror all on it's own. And what's the first thing you do? You adjust the mirror, angling it down and towards you so you can center the reflection of the rear window in the mirror and see it by just glancing over, correct? And now that camera is pointed up and to the right, not straight ahead. It's a very wide angle lens, and this is not really a problem, but I fixed it by making a small wedge out of foam and inserted it between the unit and the mirror it's mounted on. Now the camera is pointed straight AND the reflection in the mirror is correct AND the rear-facing camera's image generally matches the real reflection. This is important on dark and cloudy days. I know this all sounds like problems and issues, but they are really not. I'm a fussbudget when it comes to stuff like this. This is a really good unit and does it all. I like it a lot.
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Reviewed in the United States on November 26, 2024 by PWadzinski
Can’t beat it for price + features. I gotta say, I’ve had quite a few dash cams and even installed some in my son‘s car but this one has the best bang for the buck. Very easy to install- it’s not intimidating to put this in your car at all with the instructions and videos that are online. Since I’ve had a couple of other dash cams, what surprised me the most about this one was the feature set. The app has the ability to save your videos and preview them on your phone or on the dash cam itself. It’s laid out very easy to understand and you get a lot of little bonuses with the features. (GPS, WIFI transfer) The quality is excellent, sharp and crisp video. I’d say the only “negatives” are that the rearview camera resolution lower resolution. But it’s not a dealbreaker, it’s pretty standard that all rear cameras are not 4K in many dash cams. They are actually a hell of a lot worse on the dash cams I’ve tried before I bought Wolfbox’s. And the only other item is mirror itself is very shiny and I suggest getting the anti-glare Matte screen protector. I mean it’s a mirror, it has to be super shiny, (so you could still use it if you power down). But for my specific use, I need to keep it on constantly so I bought the matte protector. It’s also a very low cost and works perfectly. To top it off I bought the Wolfbox hardwire kit that goes into the OBC port. This made life is so much easier and was really a 10 minute install. Zero complaints, it works as advertised. And it’s an stress-free install with popping in one plug, hiding wiring and you’re done. All in all I’m very satisfied with my Wolfbox purchases. Maybe in a few months I’ll have a few usage comments but this was a great investment for my car.
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Reviewed in the United States on December 30, 2025 by Vincent C.