WOLFBOX G840S 12" 4K Mirror Dash Cam with 5.8GHz WiFi, 2160P Full HD Smart Rearview Mirror for Cars & Trucks, Front and Rear Dual Cameras, Night Vision, Reverse Assist, Included 32GB Card & GPS

This is a great product and relatively easy to install. The image quality is great. However, it appears that the version I've bought does not have a WiFi connection which makes it pretty redundant for me as I don't own a laptop to read the SD card. It was fitted to a VW Transporter so the rear camera needed an extension cable. Purchased in March 2025, looks like WIFi added from April 2025. Check with the supplier for the actual change.Update- I've purchased the latest version of the G840s as it's a first class product. Wolfbox have also been in touch to discuss my original review. The product was always 1st class but unless I could connect wirelessly then it would give me an issue. My van, now has a wireless connecting camera and it's spot on. Wolfbox have also offered to compensate towards the 1st camera bought, which was my mistake.

I recently installed the WOLFBOX G840S 12" 4K Mirror Dash Cam in my van, which has no rear windows, and it’s absolutely perfect. The front and rear cameras give me full coverage, and the 4K front + 1080P rear footage is crystal clear.The touch screen rearview mirror is easy to use and makes reversing and monitoring my surroundings simple. I also love the night vision, reverse assist, and the included GPS and 32GB card—everything I needed in one package. The 24H parking mode gives me peace of mind when the van is parked.Overall, this dash cam is an excellent solution for vans or vehicles without rear visibility. It’s reliable, high-quality, and makes driving and parking so much safer. Highly recommended!

Decided to give this dam cam a go after not being happy with my current setup - a Carpuride car player header (nothing wrong with it, just naffy dashcam set up for my car)Reviews both on Amazon and also on youtube seemed good - so gave it a goPackaging and over feel of the camera is great - you literally get everything you need in the box - video quality so far seems great - I just have a few niggles:to have the mirror tilted to me, so that I can use it like a normal mirror, makes the angle of the dash cam point too far to the left. If I have the mirror tilted so that the camera is pointing more straight, then the dash cam doesn't work as a mirrorI wear varifocal glasses, and when I glance up at the dash cam screen, it's a bit out of focus, unless I tilt my head back furtherSometimes - my eyes get very confused at what IM looking at, as I can the reverse view camera feed, but can also see a reflection in the screen as well - so it's like looking at two rear view images at once, and my eyes couldn't figure it outI haven't done any serious driving yet to know, how I feel about using a camera feed as a rear view mirror - as the driving decisions could be significant, and I'm not sure how I feel about that yetThe other quip is that, my phone connects to the car play carpuride head unit and did FM tranmission for music, something from the Wolfbox is causing a LOT of interfence, enough to make the FM transmitter un useable!Could be in need of a special cable or something - watch this spaceOverall - I would say for the money, it's a great piece of kit and does exactly what its supposed to do - just need to fine tune the setup

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 itself4) Plastic wedge to feed and hide the cable during installation5) 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 adapter7) InstructionsBuild 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 installationCons: 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.