WOLFBOX G840S 12″ 4K Mirror Dash Cam Backup Camera, 2160P Full HD Smart Rearview Mirror for Cars & Trucks, Front and Rear View Dual Cameras, Night Vision, Parking Assistance, Included 32GB Card & GPS
Original price was: $ 179.97.$ 101.99Current price is: $ 101.99.
Price: $179.97 - $101.99
(as of Mar 26, 2025 10:47:32 UTC – Details)
Product Description
Extra-large Touch Screen
Two Channel Replay
You can watch the videos from both the front and rear cameras on your computer at the same time, allowing you to monitor the entire surroundings of the car and saving you time.
Adaptable Rear Cam
The rear camera can be freely adjusted in angle and comes with a flip function. If your view appears upside down while using it, you may need to use this feature to help you flip the perspective.
Super Capacitor
The super capacitor can withstand temperatures from -4°F to 149°F,eliminating the risks of overheating, explosion,and melting. It also has a longer service life,twice as long as lithium-ion batteries
Super Night Vision
It uses an upgraded low-reflectivity LCD to reduce daytime reflection. With advanced WDR&HDR technology, a starvis sensor, and a 6-glass lens, making nighttime driving easier.
Time-lapse recording
Time-lapse recording allows you to capture an extended period of time by reducing the number of frames in the video, enabling you to see a recording of 24 hours in its entirety.
G-Sensor
The WOLFBOX mirror dash cam automatically starts recording in the event of a collision.
Loop-Recording
The rear view mirror camera automatically overwrites the oldest files, ensuring that you never miss any important videos.
GPS
With the GPS plugged in, the dash cam mirror can record the speed, direction, and path of the car.
Hold Live Events
The rearview mirror camera assists you in capturing all videos and ensures the authenticity of your recordings.
Does wolfbox mirror dash cam support WIFI?
The G840S Mirror dashcam does not come with WiFi. If you require WiFi, I recommend another product, the G840H (B08DRLY2R1).
Is the rear camera wirelessly installed, and does it have waterproof functionality?
This rear camera cannot be installed wirelessly, but it does have waterproof functionality.
Can this mirror dash cam connect to my own rear camera?
This dash cam cannot be installed with your own rear camera, because it is not compatible with other cameras, our products come with rear cameras, if there is damage, you can buy our rear camera accessories.
How to filp/mirror the rear camera image?
If you want to install the rear camera on a pickup, SUV, or even on the top roof more conveniently, please adjust the “Upside Down of Rear Camera” and “Mirror Flip of Rear Image” menus to adjust the rear image vertically or horizontally.
Does the mirror dashcam only record front camera video?
G840S saves front and rear videos. Click the [playback icon] to enter the playback interface. Then Click the [car-shaped icon] to switch the video interface of the front and rear cameras.
WOLFBOX Witness every moment.
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Customer Reviews
4.3 out of 5 stars 12,445
4.2 out of 5 stars 204
4.3 out of 5 stars 224
4.4 out of 5 stars 1,154
4.3 out of 5 stars 2,334
4.2 out of 5 stars 81
4.3 out of 5 stars 923
Price
$101.99$101.99
$269.99$269.99
$144.49$144.49
$119.98$119.98
$127.49$127.49
$199.99$199.99
$107.99$107.99
Resolution
4K(F)+1080P(R)
4K(F)+2.5K(R)
4K(F)+1080P(R)
4K(F)+1080P(R)
4K(F)+1080P(R)
4K(F)+2.5K(R)+1080P(I)
4K(F)+1080P(I)+1080P(R)
Screen Size
12”
12”
12”
10”
12”
2.35”
3”
Capacity of the Free Card
32GB
128GB
64GB
64GB
64GB
128GB
32GB
Recommended Card
32G-256G,Class 10
32G-512G,Class 10
32G-256G,Class 10
32G-256G,Class 10
32G-256G,Class 10
32G-512G,Class 10
32G-256G,Class 10
Special feature
4K(F)
STARVIS IMX678
ADAS & BSD
Adjustable lens
4K(F)
STARVIS 2 dash cam
3 channel dash cam
Wi-Fi
No
5.8GHz Wi-Fi
5.8GHz Wi-Fi
5.8GHz Wi-Fi
5.8GHz Wi-Fi
5.8GHz Wi-Fi
2.4GHz Wi-Fi
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.
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 vehicle’s 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.
GPS TRACKING ALL THE TIME – The included external GPS antenna enables real-time GPS data display directly on the dash cam. Easily playback recordings to relive your journey and analyze driving data with precision.
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.)
ENHANCED STABILITY & ADDITIONAL FEATURES – Enjoy reliable performance with the upgraded USB-C power port, which eliminates issues like restarts and overheating. Unlock additional features such as streaming media rearview, adjustable viewing angles, and G-sensor recording for added peace of mind.
Customers say
Customers find the onboard camera to work well, with an accurate GPS and rear-facing camera. They find it easy to install, with a user-friendly setup and clear video quality. The camera provides crisp and clear images during daylight. Many customers appreciate its value for money, but some report issues with night vision due to glare.
AI-generated from the text of customer reviews
7 reviews for WOLFBOX G840S 12″ 4K Mirror Dash Cam Backup Camera, 2160P Full HD Smart Rearview Mirror for Cars & Trucks, Front and Rear View Dual Cameras, Night Vision, Parking Assistance, Included 32GB Card & GPS
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Original price was: $ 179.97.$ 101.99Current price is: $ 101.99.
PWadzinski –
5 stars… and with a couple of reservations
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.
John W –
Great dash cam/smart rear-view mirror for the price
TLDR: Your satisfaction with this item will depend on your need. If you want a all in one device – dash cam/rear camera/backup camera/GPS Speedometer/compass and the occasional rear camera view because your view is blocked – this is a must buy. But if you’re planning on using this in rear camera mode all the time – this may not be the product for you.I was surfing YouTube one day and came across a video of a Smart Rear View Mirror and was intrigued. I have a midsize SUV and with the cargo area full of boxes, balloons or people, I can’t see out of the rear view mirror. I always wanted a rear view camera as well and this crossed off a lot of my needs. We’ve come a long way when a touch screen product like this with all these features is a little over a hundred dollars. I went with the 12″ because I saw how the 10″ rear view mirrors had to extend the camera out so your original mirror doesn’t block it. So it ends up being 12″ anyway and doesn’t look as clean. But I made sure I measured everything and that my sun visor wouldn’t block it before getting the 12″. After two weeks with the mirror, here is my list of Pros and Cons:Pros:-Quick install. I mounted the rear camera with the double sided tape to the glass of my SUV tailgate. That way it doesn’t get dirty or wet. The higher position also reduces the camera being blinded by headlights straight on at night as opposed to it being mounted by your license plate.-At night, I find the screen at the lowest brightness works well. It’s no brighter than the cars infotainment screen.-The large screen makes navigating and watching recordings easy. The UI was surprisingly easy to navigate.-Comes with a 32GB Mini SD Card so you’re ready to go at the start. But I highly recommend getting a 64GB card, anything higher might cause issues.-One of the reviews said you couldn’t set the screen to display mph or 12 hour time. I was able to set both, either they fixed it via a firmware update and the new ones are updated or some people are just not tech savvy.-My SUV already had a OEM crappy backup camera, so I didn’t spend time tapping into the reverse light.-There isn’t a app to wireless transfer the recordings. So you have to plug the miniSD card into a computer. -Navigating the folders to the files are pretty intuitive. But if you need to have both the front and rear recordings playing at the same time, you’ll need to download their GV Player. Which I will add as a Con below.-Excellent and responsive customer service. Just make sure you email service.wolfbox@gmail.com and not what’s listed in the manual.Cons:-Firmware. No mention anywhere how to update the firmware. I’ll reach out to support to add me to the email list when new firmware is available.-Speed warning setting. Can’t change it from kph to mph, but a firmware update in the future could fix this. Not that big of a deal, since you will only have to set this once.-No automatic brightness adjustments. In modern cars when the headlights come on, the tachometer and infotainment would dim accordingly. But I can see how this could be a liability as well.-I use this as a normal mirror, but with the time/date and GPS overlay on it. I have noticed the glare issue others have noted – especially when it’s overcast (even with all my windows tinted -except the front). But since I’m not using the rear camera live video feed 100% of the time, it doesn’t bother me. I was more interested in the rear dash cam ability.-I wish there was a saturation/hue and contrast setting, maybe in a future firmware update.-The GV Player has a little bit of a learning curve, especially when there is no manual. The user interface is also dated. I also couldn’t figure out how to get the GPS portion working in the software.
Limerunner12 –
Whats a good start for a technology that will help me drive safely. Thanks.
Mert Tunali –
The screen and touch responce is great. It has nice features. Front camera is pretty good but rearview is not as good after dark. Some pictures that are uploaded can be misleading and make you purchase a different model rather than what you want.More importantly, the customer support is phenomenal. They will fix any issue and make sure you are happy with the purchase and the brand. Happy to own a Wolfbox branded product.
Carles –
La cámara de coche WOLFBOX 4K Dashcam es, sin duda, un dispositivo impresionante que ha superado mis expectativas en todos los sentidos. Como conductor preocupado por la seguridad, siempre he buscado una cámara de tablero confiable que pueda proporcionar pruebas claras en caso de un incidente en la carretera, y esta cámara lo hace con creces.En primer lugar, la calidad de video 4K es excepcional. Las imágenes son nÃtidas y detalladas, lo que facilita la identificación de matrÃculas u otros detalles importantes en las grabaciones. La pantalla táctil de 12 pulgadas es lo suficientemente grande como para ver claramente lo que está sucediendo y navegar por los menús de configuración de manera sencilla.La función de doble lente con ángulos de visión de 170° + 140° es una caracterÃstica destacada. Captura un amplio campo de visión tanto en frente como en el interior del automóvil. Esto es especialmente útil si desea documentar lo que sucede dentro del automóvil o si tiene un vehÃculo de flota y necesita supervisar a los conductores. La visión nocturna también funciona sorprendentemente bien, lo que proporciona una calidad de video clara incluso en condiciones de poca luz.El G-Sensor es una caracterÃstica vital en una cámara de tablero, ya que detecta automáticamente eventos de colisión y bloquea las grabaciones para evitar que se sobrescriban. Esto garantiza que siempre tenga evidencia de cualquier incidente.La función de grabación en bucle es práctica, ya que asegura que la tarjeta SD de 32 GB incluida nunca se llene por completo. Las grabaciones más antiguas se sobrescriben automáticamente, por lo que no es necesario preocuparse por la capacidad de almacenamiento.El monitor de estacionamiento es una ventaja adicional. Puede configurar la cámara para que grabe automáticamente cuando detecta movimiento o vibraciones mientras su automóvil está estacionado. Esto puede ser útil para proteger su vehÃculo en situaciones de estacionamiento.La instalación fue relativamente sencilla gracias al soporte de succión y el cableado incluido. Además, la cámara es lo suficientemente elegante como para no obstruir significativamente su visión mientras conduce.En resumen, la WOLFBOX 4K Dashcam es una inversión valiosa para su seguridad en la carretera. Ofrece una calidad de video excepcional, funciones avanzadas y una fácil instalación. Si está buscando una cámara de tablero confiable y de alta calidad, no puedo recomendar esta lo suficiente. Estoy muy satisfecho con mi compra y me siento mucho más seguro en la carretera con esta cámara a mi lado. ¡Una compra excelente! âââââ
Jean P. –
Ik ben het Engels niet machtig zo kan mijn instellingen niet naar mijn keuze instellen
Robert Seb –
** Updated**Ok, so I bought this based on the reviews.I originally gave it 3 stars, but upgraded it to 4 then 5, because of interactions with their service team, whom are very keen on making things right. I upgraded it again to 5 because their solutions and actions were great.So, now that I have this all installed, I went out in the deep darkness for a test.I thought that it works pretty good, but let me get into the details.Cameras:I found the original rear camera had a rather grainy image in the dark, but useable, I suppose I was expecting it to be a bit more of an eye into darkness than it turned out.Am I disappointed?; well no not really, maybe some⦠but I did think it should be a bit better than it is.Graininess shouldnât be affected even considering it was installed inside the rear hatch window. The forward image is great and itâs behind a windowâ¦So The next day it was sunny and I went for another drive. So now i find some new issues:When driving with the sun out, looking at the rear image, there is a lot of problem with reflections. I am guessing itâs because itâs mounted on the inside, oh well, for now that will have to do until I can figure out how to mount it outside in such a place that is useful, I may try adding a small black cardboard sun shade over the lens to see if that helps.I donât really want to mount it outside And offset from the hatch handle (the handle is right in the center) for several reasons, first being that I donât want it staring straight into the guy behind meâs headlights and second I donât want some punks walking by and seeing it dangling there and decide to damage it, rip it off or diddle with it. So inside it stays for now.** Update **Wolfbox customer service got in touch with me after they read my review and offered to ship me a new better model rear camera, it came very fast and now that itâs installed, i can say i like the rear image much better. Much less grainy.Front camera:I find the clarity and overall look and brightness are really great.Software:So when using the setup, I found a problem that bothers me. If you are dealing with the reflections and want to turn off the screen, and use it like a regular mirror, it stops recording if you are in the brightness mode.If you put it on âscreen off modeâ, that issue is avoided, because it turns off the screen and keeps recording after it stays lit for 30sec, so ok⦠but it would be nicer to have an onscreen button that you could do that with because now if iâm driving at night and want it on, you have to go into settings and monkey around to get it back to being on all the time⦠grrrr And then of course the screen is really dark in mirror only mode which is very sad. The manuals descriptions of the modes is poor.** Update **Tech support said that âquickâ touching the power button will also turn it off but allow for continuous recording in mirror only mode. Ok, that helps!I love the touch screen, and the software is clean and easy to use minus the issues I mentioned with the screen off options.I love how i only have to touch the screen like an iPad to move the image angle up or down.Also, the file system seems very weird. After reviewing the files on my computer it seems that I can see all the files as expected, you can only review forward files while on the mirror, I canât see any files for the rear camera on the mirror, only on the computer⦠not a deal breaker at all.Device body and design:Another issue I have is the very poor âthoughtâ design of the cables where they connect to the unit⦠3 different shapes and angles, you would think they would design it in such a way that they would all face the same direction and sit nicely side by side instead of all hap hazard⦠see pics. (iâll get a better pic soon)It would be nice if the PCB had the memory card to one side or the other rather than in-between the rear cam and gps wire connections. But not a deal breaker.GPS and LDWSI tried the gps gizmo and took it out – absolutely useless and distracting.Supplied cables and lengths.I have a 2013 grand caravan and I found the rear camera extension wire was âjustâ long enough, if i have to mount it down near the license plate it might not make it unless i routed it as a straight shot through the head liner rather than around the perimeter under the edges.Also, The front power wire is just barely long enough and i mean barely it would be nice to see it 6 inches or more longer.I originally bought a 10inch unit – and âthatâ was too small just incase youâre trying to figure out which one you need.Security Features:There is a consideration to make when you buy one of these you may need to know.It has to do with the leaving the camera on 24/7 on a non keyed 12v outlet, I tested the unit after i installed it and it is drawing about 0.3amps, so if you have a 45 or so amp hour battery, the battery will be dead or unable to start the car in about 3 to 6 days, so if you donât drive everyday – so as to recharge the battery, you might want to not bother with the security cam feature.If you do, you should get the adapter kit that is suppose to prevent drawing the battery out completely, but again, if you donât drive it everyday, that kit will only just cut off the battery so it doesnât kill it, and youâll still be not recording after maybe 4 – 6 days.However! – just to be clear, all this draining on a 24/7 recording program, is going to hurt your battery long term, because draining a flooded lead acid battery to 75% every 3 – 6 days is not good for it.You might want to get a heated LifepO4 lithium or at least an AGM battery rather than a basic lead acid flooded battery. But I am ranting here⦠this not the fault of the dash cam⦠you could buy your battery at costco and just replace it under warranty in 3 years if it gets weak.Or, maybe getting a small dedicated additional battery that you hide somewhere for the camera to draw from, which your alternator charges maybe with an isolator switch to have while your driving, just saying.That of course will likely have to be professionally installed to be useful. I just wouldnât bother.I am just going to use it in my keyed 12v outlet thanks, and for that it seems so far to be great. I find if i need security recording – i just switch the prong to my non keyed outlet for as long as i need it then i put it back.**Update**I received some info from tech support concerning the recording in off keyed mode, apparently they say that there is circuitry embedded that prevents it draining the battery past 12v. I knew I wasnât going anywhere over the holidays, So I put the adapter into my non keyed outlet and after 3 days my battery was stone dead at 8.4v – yup had to get a jump to start it.So I will leave it in the keyed adapter from now on, but regardless I still donât like the idea of leaving any sort of parasitic device eating away at my battery even if I am charging it every day.I know many of you are not electrically savvy and think that there is nothing to consider when making changes to your systems, that all is rosy and possible.As I said; if you do use it in non keyed mode or with it running straight off the battery AND you tend to not drive everyday, you should have something other than a lead acid battery installed, and the additional kit that protects the battery because LONGTERM your going to shorten your batteries life and unless you drive everyday, you are going to drain out.So overall – you canât go wrong buying this unit! Support is great, and the product is well thought out for the most part. I may be a bit weird about protecting batteries, but thatâs me. If youâre looking for a good dashcam mirror, this one is worth getting in my opinion.my 2cents