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The WOLFBOX G840S is a premium 12" 4K mirror dash cam featuring dual front (4K) and rear (1080P) cameras with ultra-wide angles (170° front, 140° rear). It boasts advanced night vision using WDR & HDR technology, a super-responsive 5.8GHz WiFi for rapid video transfer, and smart reverse assist for safer parking. Included are a 32GB memory card, GPS module for speed/location tracking, and all necessary installation accessories. Designed for cars, trucks, and buses, it offers a sleek, easy-to-install rearview mirror mount with a 2-year warranty, making it an essential upgrade for safety-conscious drivers and fleet managers alike.

















| ASIN | B0811Q28N6 |
| Are Batteries Included? | No |
| Auto Part Orientation | Front & Rear |
| Auto Part Position | Front Inside |
| Battery Cell Type | Lithium Polymer |
| Best Sellers Rank | 2,010 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 36 in Car On-Dash Mounted Cameras |
| Box Contents | 11ft Power Supply Cable with Car Charger, 4K Mirror Dash Cam, 1080P Rear Camera, 32GB TF Card, GPS Module,4 Rubber Straps for Fixing Front Camera, High-Performance Adhesive,20ft Rear Camera Cable,User Manual |
| Brand | WOLFBOX |
| Brand Name | WOLFBOX |
| Colour | Black |
| Compatible Devices | Car, Bus, Minivan, Truck |
| Compatible with Vehicle Type | Bus, Car, Minivan, Truck |
| Connectivity Technology | Wi-Fi |
| Connectivity technology | Wi-Fi |
| Control Method | Touch |
| Country of Origin | China |
| Customer Reviews | 4.3 out of 5 stars 14,585 Reviews |
| Display Type | LCD |
| Field of View | 170 Degrees |
| Flash Memory Supported Size Maximum | 32 GB |
| Flash Memory Type | SD, microSD |
| Frame Rate | 30 FPS |
| Included Memory Card Size | 32 GB |
| Item Dimensions D x W x H | 30.1D x 7.2W x 1.8H centimetres |
| Item Type Name | G840S mirror dash cam rear view camera |
| Item Weight | 830 Grams |
| Manufacturer | WOLFBOX |
| Manufacturer Part Number | G840 |
| Maximum Aperture | 1.8 f |
| Memory Slots Available | 1 |
| Model Name | WOLFBOX G840S |
| Model Number | G840 |
| Model name | WOLFBOX G840S |
| Mounting Type | Rearview Mirror Mount |
| Optical Sensor Technology | CMOS |
| Other Special Features of the Product | WDR & HDR, Super Night Vision, Vertical flip & Mirror flip, GPS Tracking, 4K UHD, G-Sensor & Loop Recording, Parking MonitorWDR & HDR, Super Night Vision, Vertical flip & Mirror flip, GPS Tracking, 4K UHD, G-Sensor & Loop Recording, Parking Monitor |
| Product Warranty | 2 Year |
| Real Angle of View | 140 Degrees |
| Screen Size | 12 |
| Special feature | WDR & HDR, Super Night Vision, Vertical flip & Mirror flip, GPS Tracking, 4K UHD, G-Sensor & Loop Recording, Parking MonitorWDR & HDR, Super Night Vision, Vertical flip & Mirror flip, GPS Tracking, 4K UHD, G-Sensor & Loop Recording, Parking Monitor Special feature WDR & HDR, Super Night Vision, Vertical flip & Mirror flip, GPS Tracking, 4K UHD, G-Sensor & Loop Recording, Parking MonitorWDR & HDR, Super Night Vision, Vertical flip & Mirror flip, GPS Tracking, 4K UHD, G-Sensor & Loop Recording, Parking Monitor See more |
| Supported Standards | MP4 |
| UPC | 708111275712 |
| Unit Count | 1.0 count |
| Vehicle service type | Bus, Car, Minivan, Truck |
| Video Capture Resolution | 1080p |
| Video capture resolution | 1080p |
R**I
2 Reviews in one - G840H and G840S
There are two reviews here. G840S & G840H =============================================================== Review for G840S: Although initially I though the device is quite bulky, after installation and setup I quickly changed my mind. I had doubts that the device will 'fit' my mirror but once again I was wrong. Just after few seconds of moving it around it fit perfectly and I was stunned how securely it holds. Installation: one important thing to remember is that the camera is on one side of the device as such the device itself will slide more to one of the sides of your mirror. Initially I thought that this will bring the 'picture' too close to my face, but actually it feels very natural and comfortable. Video: I have different 4k camera in another vehicle and after few days of driving and comparing the quality it is hard distinguish the difference. Needless to say, I spent a lot of time doing my research before the purchase, so when this one landed on my lap I was surprised with this shot in the dark. Box: the box comes with a number of gadgets that you can but don't have to use. 1) Beside the camera itself and the mounts, you can use the GPS device. This is not compulsory, but if you want the GPS/speedometer info, it’s a must. The add on is very small, consequently you can conveniently install it behind the mirror. From driver's perspective you won't see it at all and it won't impact your vision. 2) The other device is the reverse camera that captures picture in the industry standard (for reverse cameras) of 1080p. Initially I thought that the 140 angle on reverse camera (170 front) is insufficient but after driving a few days, I can confirm it's perfect. After reviewing videos I have no problems reading number plates, so in the case of unfortunate accident, you can stay assured, the evidence will be there. 3) Cloth, nice bonus for cleaning the camera or device itself 4) Plastic wedge to feed and hide the cable during installation 5) Few cable holders (there are doing just fine during hot day). Also they can be used multiple times so if you decide to swap the cable (during hardwire installation) this can be done easily. Before installing one or few make sure you are confident if your choice as they hold very well. 6) Power adapter 7) Instructions Build quality: The device feels nice in hand. You get the premium feeling and after opening the box, I almost felt like it's Christmas. Pros: Material, Quality, Ease of installation Cons: this one is difficult. NONE in short, but if I was to try and find one thing I don't like, well... not for me but the reverse camera cannot be mounted directly on the window. I know there are people who would prefer do it. Consequently its a matter of preference I guess. Would be nice to have an option to chose which reverse camera option you prefer... but I'm nitpicking now. =============================================================== Review for G840H: It pleases me to be given opportunity to once again test another product of this company. A frind of mine was recently involved in a car accident and regrets not having one. Cutting to the chase just like G840S, the G840H provides you with the same quality feeling. The reverse camera feels heavy, but it must be due to its very good build quality. I have seen some plastic reverse cameras which I would not risk putting outside of the car, but this one, without a doubt in my mind can be easily installed over your number plate and configured with the DashCam to be your reverse prinking camera. The box comes with everything you need to do the initial installation. If you need the 24/7 parking mode enabled, a hardwire kit is required. This is standard across the industry. The hardwire kit is not expensive and you can get a good one for areound £25. Picture quality: The camera records in 1440P and can be configured in settings to use either H.264 or H.265 compression. On the paper, 265 is better as offers better compression and more footage on the same memory card. In my private opinion I prefer the old H.264. I found it provides marginally better quality picture and the loss in form of bigger video files is the price I'm prepared to pay. Let's be honest, the 256GB cards are not that expensive these days. Reverse camera records at 1080P which is industry standard. Front and back camera angle coverage: Front record at 170 and captures nicely everything you need, even vehicles that are practically parked next to you. Back camera provides 140 degrees angle and this is everything you will ever need. There is currently nothing with wider angle or better quality from what I can see, but you are welcome to do your research. Memory card: The box comes with 32GB memory card. This is perfect to get the DashCam up and running straight away, nevertheless I do recommend upgrading to at least 128GB, or 256GB if you plan on using parking more. Installation: This cannot be any simpler. If you don't count the time to plug it into the power source, I doubt it will take you more than 30 seconds to get in installed. It's hard to describe it, but my advise it to simply put it over the mirror and wiggle around until you feel it sits comfortably, and then secure with straps. Settings: The camera has a huge screen and it is super easy to configure from software perspective. I do prefer this over cameras that need to be connected to over iOS/Android system. It is super responsive and provides immediate feedback. Box: Comes with everything you will need to get the device up and running. I have attached picture with items available in the G840H box. Pros: Just like G840H, the product is of premium quality. Also, if you like to see clearly what is behind you and could use a bit of zoom, think no more. The dash cam screen is big enough to provide you just that, and not big to make you feel like it covers the windscreen. Further to the above the cam comes with GPS so it can also record your speed and location. This is a huge advantage in case you have an unfortunate encounter and someone refuses to accept liability. Cons: This is more of preference. Although the 1440P video is perfectly sufficient to read the numberplates and to be used as evidence, I do prefer the 4k quality cams. If this is also your preference G840S from the same seller ticks all the boxes.
A**R
Excellent all in one, dash cam, mirror and reverse camera
This has to be the best dash cam i have owned, it has been fitted for 3 years and I’ve never had a single fault. Unlike the countless amount of dash cams I have been through from bigger brand names. The reverse camera is a game changer too. Easy to fit, plenty of cable and great customer support. I just regret not buying the mirror mount with it so I could get rid of the factory mirror altogether. Well worth the money.
Z**N
Decent
Pretty decent mirror dash cam. Ive upgraded from a bog standard front one to a front and rear. Easy to install and pleanty of cable length to have round the top or bottom of car (especially the rear camera) rear camera easy to install and discreet in the back. I havent used the parking sensors as my car already has this. The functions and settings are easy to use as well as the app. I bought a higher memory sd card but it comes up with an error so unsure of why this is. Would be nice to be able to get a bigger memory sd card than the standard size you get. Only niggles really is that you cant minimise the cameras on the mirror. You can have either one cam fully or half and half of front and rear but cant minimise to small boxes (would be a nice feature) and to delete footage from the app its a pain as you have to turn WiFi on at the dash cam and connect your phone and then go into the app (only one dash cam is on as well) would be better if you can access without all thos faffing about. All in all its nice quality, 4k picture so clear and crisp. Would defo reccomend especially with added features with GPS ect. These are great to have for safety on the road.
N**A
Top quality front and rear dashcam that works amazingly well in a van
What a fantastic piece of kit it has been in my van now for coming up two years. You could not buy better in my opinion for the money the images are crystal clear on the small or on a bigger screen if you export them. I use it as a rear view mirror in a van and the angle of the lens perfectly eliminates any blind spots when I’m overtaking or pulling in front of a vehicle, that’s a lifesaver as far as I’m concerned. I did have cause to contact customer service and frankly you could not get better there either, Mark was excellent. Top marks all round from me.
M**C
Loads of options
Great bit of kit. clear, wide picture,even at night. Very good. Easy to install.
I**H
Excellent Mirror Dash Cam
This mirror dash camera is amazing. I think I've converted everyone in my family to buy one. I've ordered 3 myself and family has also ordered. Excellent video playback, clear and visible, not grainy at all. Really easy to use. Has a few different settings, for my child I put on the speed alerts, that kept them aware, especially since a lot of the roads are average speed near us. Can be hardwired for continuous recording. Had them fitted by a professional but it can easily be done by yourself. Rear camera comes in use when reverse parking and even when someone hit my car from behind, provided excellent footage which shows fault. Has a save function so even if you write over the memory card, the video and pictures you save are still there. The customer service they provide is flawless, any time I've asked any questions, I get a detailed response. Cannot fault it at all.
B**N
Cheap but good
I installed this last year in my VW T6 SWB. it is adequate. - The picture quality is good. - it turns off when my stop/start activates - I have checked and despite this model saying it has 5.8GHz WiFi I am unable to connect so manually removing memory card is the only way to access files - The clock tends to not adjust to daylight savings time. - The speedo and clock are hard to see - too light / fonts not big enough. - The speedo is obvs satellite speeds so be careful through speed cams. - Pressing the padlock whilst driving will save and protect everything thereafter (until you press again) to card and then overwrite earlier saved files so don't accidentally press it if you have files you want to keep. I saw an incident whilst driving and pressed the padlock icon as I assumed it would 'save the current clip' but it just kept going, protecting all further files and then over writing my previous clips. - the rear camera needs a regular wipe or it'll get hazy and it's not very good when it has road spray on it - I would suggest you don't bother wiring the reverse camera in to trigger via reverse light activation, all this does is change the view to full screen (this reduces the width of the screen visible so as to show the full aspect) and also adds the reverse lines that are fixed and tend to just get in the way. I just swipe the screen down when I reverse and it's better - the cable in the box was enough to get all the way to the back of the van to just above the number plate Despite what may appear to be a negative review list, I think this is good value for money as far as a dash cam is concerned and also as far as a rearview alternative. I would recommend
G**S
Great product Great company
I originally bought the Wolfbox dashcam as a security device as I always knew there was a risk of theft where I live in a busy urban area. My car is parked in the street every night. This is why I purchased a mirror dashcam as it has a lower profile than some others and could be mistaken for a mirror without closer inspection. However the dashcam is much more than just for security and is an extremely effective device for giving a wide forward and rear view of the road. The quality is excellent and the screen is large enough to have a split view of front and rear although I defaulted to rear view only most of the time. The quality of the recordings is very good and clear and there are options to choose the length of each video capture. It has the facility to record sound too although I have chosen not to use this. I had some issues with glare causing reflections in bright sunlight, however, I experimented with angles and found if I angled the screen upwards slightly I solved this problem. My only real criticism is that car headlights at night cause a starburst effect on the screen which causes the picture to be less clear. This was not a deal breaker for me, just a minor gripe (potentially with a solution - I will experiment more). One of the most amazing things about Wolfbox however is their exemplary customer service. They are incredibly attentive and helpful. When I asked about a hard wire kit so that I could leave the device on overnight they sent one free of charge immediately. Any queries I had were swiftly answered politely and clearly. I cannot recommend this company enough and the product is great too.
L**2
Wow. This is a good back mirror.
Whats a good start for a technology that will help me drive safely. Thanks.
M**I
good front camera but lackluster rearview camera
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.
C**S
Producto muy recomendable
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 nítidas y detalladas, lo que facilita la identificación de matrículas 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 característica 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 vehículo 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 característica 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 vehículo 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! ⭐⭐⭐⭐⭐
J**.
Nederlandse handleiding
Ik ben het Engels niet machtig zo kan mijn instellingen niet naar mijn keuze instellen
R**B
For the price - This one is great, but not perfect, but really close!
** 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 shouldn’t be affected even considering it was installed inside the rear hatch window. The forward image is great and it’s behind a window… 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 it’s because it’s 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 don’t 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 don’t want it staring straight into the guy behind me’s headlights and second I don’t 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 it’s 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 “screen off mode”, 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 i’m 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 “quick” 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 can’t 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 “thought” 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. (i’ll 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 LDWS I 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 “just” 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 “that” was too small just incase you’re 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 don’t 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 don’t drive it everyday, that kit will only just cut off the battery so it doesn’t kill it, and you’ll 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 wouldn’t 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 wasn’t 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 don’t 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 can’t 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 that’s me. If you’re looking for a good dashcam mirror, this one is worth getting in my opinion. my 2cents
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