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The new 70mai 4K T800 bundle features three cameras, which means that vehicle owners get covered outside and in.

70mai Dash Cam 4K T800: two-minute review

I’ve been mildly obsessed with the best dash cams since getting rear-ended by another car. Nowadays, I tend to bypass more basic models, like the Nextbase Piqo and head for something with a more substantial set of features. The Viofo A329 Pro Dash Cam, for example, is a great option. However, the 70mai 4K T800 three dash cam bundle supplants Viofo as my current pick of the dash cam crop.

Since installing it a few weeks ago, I think this model is one of the best for covering all bases thanks to a trio of cameras and lots of shooting power. The 70mai Dash Cam 4K T800 is a premium package, which means it costs more than many other models, even within the rest of the 70mai product portfolio. This is for good reason though, as the bundle is an impressive blend of quality cameras, beefy tech and the sort of user-friendly design that makes setting it up appealing for anyone who’s short on time.

The front and rear cameras both feature Sony IMX678 Starvis sensors, which capture 3840 x 2160p 4K video at 30 frames per second with a 146-degree field of view. The cockpit-facing camera shoots 1920 x 1080p footage, so combined there’s effectively complete coverage both outside and in. Adding to the appeal is a raft of bang-up-to date tech specifications, that including Wi-Fi 6 at 5GHz for speedy transfer of those larger 4K files, plus voice command operation, storage up to 512GB via microSD card and a power supply that uses a supercapacitor arrangement.

(Image credit: Future)

Alongside these impressive specs, I also love the after-dark and low-light capabilities of the 70mai 4K T800. It’s got 70mai Lumi Vision, that helps enhance footage in less-than-ideal conditions, plus there’s the so-called ‘Night Owl Vision’ which captures excellent footage in the dark. I’m also keen on the subtle features, like the MaiColor Vivid+ Solution technology that boosts the exposure capabilities of the cameras to tackle issues that can occur when shooting through different types of windshield glass.

Crucially, for me at least, the 70mai 4K T800 benefits from upgraded Buffered Emergency Recording, which can work from a default 1 minute right up to 3 minutes. The usefulness of this feature is everything, with the ability to retain footage of any kind of incident before, during and after it happens. The way it can do this without me having to worry about it makes the 70mai 4K T800 a very dependable option. If I needed them, I’d also be pretty pleased with the Smart Parking Guardian Mode, which offers permanent 24/7 monitoring in locations such as car parks. An additional, hardwire kit is needed to deploy this, however.

Overall, the 70mai 4K T800 is a complete solution that offers complete coverage with a specification and feature set that’s right up there with the best of them. 70mai also completes this comprehensive dash cam package by supplementing it with an excellent app, which I have used previously without fuss or bother.

70mai Dash Cam 4K T800: price and availability

The 70mai Dash Cam 4K T800 is available to buy now and can be purchased from Amazon in the USA for $400 as a Premium Set bundle that includes the rear camera. It can also be purchased directly from the 70mai website. Meanwhile, Amazon in the UK also sells the bundle for £450.

70mai Dash Cam 4K T800: specs70mai Dash Cam 4K T800 specs

Video

Front: 3840 x 2160p (4K)
Rear: 3840 x 2160p (4K)
Interior: 1920 x 1080p @30fps

Field of view (FOV)

146 degrees front / 146 degrees rear / 147 degrees interior

Storage

MicroSD up to 512GB, Cloud

GPS

Yes

Parking mode

Yes, with constant power cable, not included

App support

70mai app

Dimensions

1.81 x 4.84 x 2.48 inches / 4.5 x 12.2 x 6.2 cm

Weight

2.07lb / 938g

Battery

Yes

70mai Dash Cam 4K T800: Design

I really like the design of the 70mai Dash Cam 4K T800. The main camera unit, which contains both the front-facing lens as well as the cockpit surveillance camera, is chunky but relatively unobtrusive. This is mainly down to the way it has been designed, with a body that can be easily attached near a rear-view mirror without feeling like it's encroaching too much on screen space.

That was good news for me as I fitted the 70mai Dash Cam 4K T800 to the screen of my two-seater sports car, which does have a fairly small windshield. The main camera has a sloping bracket, which contains the self-adhesive pad that can be mounted using a static sheet on the glass to make removal easier.

The really clever bit with this design, though, is the way that the 70mai designers have made the cockpit camera lens swivel on its mount. This means it can be adjusted so the view is just right and covers all of the interior space. I found it really useful because my two-seater makes mounting a rear-facing camera all but impossible due to a retracting top. The 70mai Dash Cam 4K T800 covers this scenario as the cockpit camera also gets the view out of the back window. In my case, it effectively does the three-camera job using just two.

(Image credit: Future)

However, the third camera, if it is needed, is the standard barrel-type design and that too can be adjusted using the swivel technique, once it’s been stuck in situ using the adhesive pad. Again, this can be done using a static sheet attached to the glass, then sticking the camera to that if the setup might need to be moved to another vehicle at some point.

Around the back of the main camera unit there’s a 3-inch IPS display screen, which features a very decent 640x360 resolution that works well in a variety of lighting conditions. Once powered up, the view displayed is a full-front outlook with a picture-in-picture layout showing the cockpit view to one side. Attach the rear-facing camera and that view also appears within the screen space. Amazingly, it all seems to fit in perfectly fine.

On the side of the body, there’s a circular light that is coloured depending on the mode of operation. On the other side is a microSD card slot and along the bottom of the camera, underneath the screen, are four control buttons. If the screen is powered up there are matching menu icons on the screen itself, making setup and adjustment all very straightforward. The 70mai app is best used in order to get the best from all of the features and functions though. It’s also great for managing those chunky 4K files.

(Image credit: Future)70mai Dash Cam 4K T800: Performance

Alongside a practical design, the 70mai Dash Cam 4K T800 has proved to be very dependable in the performance department. If the three-camera setup is being used there is some inevitable time taken to plumb in the various cables and get everything into place. However, I found having those camera lenses mounted in a rotating case made getting the shooting angle really straightforward. This was further aided by the live view that appears on the rear screen.

I also found the setup procedure a no-nonsense affair, with the usual formatting of the memory card needed to get the ball rolling. I also had to pick through the time and date settings, which is very simple using the default time zone sections, or it can be setup manually. I did all the basic steps using the controls on the back of the camera, and the buttons and menu options were all self-explanatory.

It’s also well worth getting the 70mai app, which acts as a brilliant supplement to the camera bundle itself. Available for iOS and Android, the software is nicely executed and makes managing those larger 4K files much easier. This is helped by the Wi-Fi connectivity of the 70mai Dash Cam 4K T800, which features Wi-Fi 6 that can be used at 5GHz for faster transfers.

Footage-wise, all three cameras are excellent. The quality is of a really good standard, with great definition when it comes to things like license plates and road signs. Best of all, the combined field of view of the trio of lenses offers up complete coverage. I found using a two-camera setup worked well in my small car too, with crisp and clear cockpit footage complimenting the views of the road ahead. And, because my car’s cockpit is so small, it’s possible to enjoy a recorded view through the back window, just by using the cockpit camera.

(Image credit: Future)

(Image credit: Future)

The 70mai 4K T800 dash cam is generously endowed with additional features and functions too. Of course, the suite of parking surveillance tools only gets tapped into by enlisting the services of an optional hardwire kit. However, there is also plenty to enjoy if hardwiring isn’t an option, including voice control for added convenience.

Best of the specification features, though, has to be the muscle offered by the Sony Starvis 2 sensor technology. 70mai reckons the sensors in this bundle help deliver 90 percent higher light sensitivity and 100 percent improved low-light performance. I see no reason to disagree.

Should you buy the 70mai Dash Cam 4K T800?

(Image credit: Future)Buy it if...

You want a three camera solution
The 4K T800 can be used as a single camera if that's all you need, but it is best exploited via the Premium Set bundle for complete coverage.

Good quality video is a must-have
Anyone with a desire to improve the quality of their dash cam video content will find the 4K footage returned by the 4K T800 top drawer.

An excellent supporting app is required
The 70mai 4K T800 packs a brilliant supplementary app, which is available for both iOS and Android. It allows for easy management of those big video files.

Don't buy it if...

Three cameras might seem too much
Some of us prefer a single camera for front-facing coverage. The 70mai 4K T800 works best as a bundle, but might be too much for some users.

You want less wiring not more
Admittedly, the rear camera of the 70mai 4K T800 does add to the wiring job, but everything needed to get the job done is inside the box, save for a hardwire kit.

You need a more compact model
While the 70mai 4K T800 is nicely proportioned, it might be a little too big for some very small windshields. However, it worked just fine in the sports car used here..

How I tested the 70mai Dash Cam 4K T800

• I installed the dash cam into a test car for an initial period of two weeks
• I used it for several journeys during both day and night
• I connected it to my phone and downloaded recordings for comparison

70mai loaned me the Dash Cam 4K T800 and supplied everything I needed to test it.

I subsequently used the dash cam over a period of around two weeks, after being sent the Premium Set bundle, which contains the main camera unit with two lenses plus the supplementary rear-facing camera. Using the contents of the box, I was able to plumb in the cameras and connect them using the supplied cables. 70mai also supply a fitting tool, which was used to push wiring behind trim panels where it was needed.

I also downloaded the app, which was installed on an iPhone 17 and put through its paces. The Wi-Fi connectivity between the cameras and app was also tested, which based on the size of the 4K video files, was a big part of the testing criteria. It all worked as expected.

• First reviewed October 2025

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The Sihoo M56C-V2 is a wallet-friendly, ergonomic chair.

I've reviewed a significant amount of gear from Sihoo over the years. Sihoo is one of those companies that offer a wide range of prices, covering budget gear all the way to higher-end gear.

The Sihoo M56C-V2 favors the budget side, but it's not as budget-friendly as the Sihoo M76A-M101. However, it does remind me of it a lot. Where the M76A-M101 was very lightweight, making it feel a bit cheaper, the M56C-V2 feels a bit heftier, without significantly increasing the price tag. Is it one of the best office chairs around? I took it for a spin to find out.

Sihoo M56C-V2: Price and availability

(Image credit: Collin Probst // Future )

The Sihoo M56C-V2 can be purchased from the Sihoo website, Amazon, Best Buy, and several other retailers, and I'm sure that number will grow over time, as this is still a relatively new release chair. The chair costs just over $200, and depending on where you buy it from, you could get next-day delivery, pickup, or relatively fast shipping.

(Image credit: Collin Probst // Future )Sihoo M56C-V2: Unboxing and First Impressions

I've reviewed a significant amount of gear from Sihoo over the years. Sihoo is one of those companies that offer a wide range of prices, covering budget gear all the way to higher-end gear. The Sihoo M56C-V2 favors the budget side, but it's not as budget-friendly as the Sihoo M76A-M101.

Some users or businesses want a good chair with some ergonomics, but they don't want to spend an exorbitant amount of money. Sadly, when it comes to budget chairs, ergonomic features are often the first to be sacrificed. For this chair, however, the ergonomics are still present, providing good back support, albeit with the lumbar support a little too low for some users.

Assembly will depend on your comfort level with building chairs. If you know what you're doing and are fairly comfortable assembling items like this, you can probably build it in around an hour. However, those with less experience may take longer to build. Another thing that could help speed up the process of assembling this chair is an electric screwdriver.

Sihoo M56C-V2: Design & Build Quality

The Sihoo M56C-V2 has a firm mesh back with a self-adjusting lumbar system. It's designed to lean and adjust with you while you move in the seat, and for some, it will work great. For others, it may feel slightly lower than desired, although Sihoo aimed to support the true lower lumbar region, rather than the mid-to-low back, unlike many chairs.

The seat cushion, although not the best on the market, still provides a reasonably decent seat for the price. Lastly, the armrests and headrest provide enough flexibility and adjustment options to be helpful, without being ground-breaking and expensive.

(Image credit: Collin Probst // Future )Sihoo M56C-V2: In use

(Image credit: Collin Probst // Future )

I've had the Sihoo M56C-V2 in my inventory for 100 days at the time of writing this review. So far, this chair has held up nicely to everything we have thrown at it, including long working days.

All around, I'm impressed with just how good this chair is for the price. Granted, it has its ups and downs, but for around $200, it's pretty impressive that it offers any ergonomic features. There is a comfortable headrest, a great cushion that provides support without being uncomfortable, and it has good armrests.

While, for the most part, this chair is excellent, some users on my team have noted that the chair's lumbar is lower than they prefer. Additionally, the armrests cannot move inward, though that's usually a feature I only see on the more premium chairs, so no marks against the M56C in that regard.

(Image credit: Collin Probst // Future )

The members of my team who felt like the lumbar was too low took matters into their own hands and added a DIY towel roll to the top of the lumbar support to help adjust the relief to the proper spot.

Other members of my team like the lowest part of the lumbar support because it feels like it properly holds their lower back.

Over the last 100 days of use, I've had one member use this chair far more than anyone else on my team. They have found that this chair is just about perfect for them. The armrests are great, the seat is comfortable, the lumbar support is helpful, the headrest is supportive, and the overall feel is wildly beneficial. This team member has suffered from migraines and tension headaches for quite some time, so having a chair that can give them a comfortable seat, a supported back, and a headrest makes all the difference.

Sihoo M56C-V2: Final verdict

The Sihoo M56C-V2 is not the fanciest chair, nor is it perfect, but it is a budget-friendly option that is well worth the money. If you are looking for a great budget chair for your home office or want to buy in bulk for a conference room or office bullpen, this chair is a great option to consider.

Should you buy a Sihoo M56C-V2?

Value

Good level of ergonomics for the price

4.5 / 5

Design

Simple design, clean, aggressive lumbar support

4 / 5

Hardware

Basic armrests, and adjust-less lumbar are simple. They work but are not for everyone

3.5 / 5

Performance

Great for budget buyers, also for average height to shorter users

4 / 5

Overall

Not perfect, but one of the better wallet-friendly chairs you can buy today if you like lumbar support

4 / 5

Buy it if...

You want a budget-friendly chair with lumbar support
The Sihoo M56C-V2 is easy on the spending side and works well for most with the lumbar support. Simple and sweet.

You need to buy in bulk
If you are buying chairs for a conference room or for a bullpen or general office use, this chair may just what you are looking forView Deal

Don't buy it if...

You want a super ergonomical chair
While the M56C-V2 has good features, it's not the most adjustable and customizable chair

You are above average height
This chair may still work for you, but there are other options that may be a better fit

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