4K front-and-rear dash cam with strong night vision, but not cheap

Is the 70mai 4K Dash Cam Front and Rear A810S worth buying? Yes, if you want premium dual-channel recording, strong night performance, and built-in extras like 4G support and a 128GB card at a current low price of £179.99. With a 4.5/5 rating from 659 reviews, it looks like a well-liked model, but the £179.99 price still makes it a more serious purchase than budget rivals.

What do you get for £179.99?

At £179.99, this A810S sits above cheaper rivals like the VIOFO A119 V3 at £109.99 and the Nextbase 222x at £109.99, but it also offers more hardware: dual Sony STARVIS 2 sensors, 4K front recording, 1080P rear recording, HDR, built-in GPS, ADAS alerts, parking surveillance, voice control, 4G support, and a 128GB high-endurance microSD card included. That bundle matters because many dash cams look cheaper until you add storage and rear camera extras.

How does the A810S perform in real use?

The headline strength is image quality. The front camera uses a Sony STARVIS 2 IMX678 sensor for 4K capture, while the rear camera uses a second STARVIS 2 sensor, which should help with clearer detail than entry-level 1080p-only systems. The listing also highlights “70mai Night Owl Vision” with dual HDR, so this model is clearly aimed at drivers who care about number plates, dark roads, and low-light visibility.

That matters in the UK, where night driving, rain, glare, and poorly lit streets can make cheap cameras struggle. The A810S also has a 146° wide angle, which is wide enough to cover multiple lanes without going into the ultra-fisheye territory some wider cameras create.

Is it good for parking and security?

Yes, the parking features are one of its strongest selling points. The A810S offers 24H AI parking surveillance and time-lapse recording, plus a 210S emergency video pre-recording feature that can capture footage before and after an incident. For UK drivers who park on-street or in shared car parks, that can be useful for hit-and-runs, vandalism, and door-ding disputes.

The 4G support is also a genuine premium feature, but there is an important catch: it requires the 70mai Hardwire Kit UP04, which is sold separately. So if you want remote viewing and real-time monitoring, factor in the extra cost and installation effort.

How accurate and useful are the safety features?

The built-in quad-mode GPS supports GPS, GLONASS, Galileo, and BeiDou, which should improve positioning accuracy and speed over basic GPS-only units. The ADAS safety alerts may help with lane or proximity warnings, but these systems are best treated as assistance rather than something to rely on in busy UK traffic.

For everyday driving, the practical advantage is less about gimmicks and more about evidence. A dash cam with accurate GPS data, front/rear coverage, and emergency recording can be helpful for insurance claims and disputes, especially if you need to show speed, location, and direction of travel.

Build quality and setup

70mai includes a 128GB high-endurance microSD card, which is a big convenience win because you can get started immediately. That also improves value versus cameras that require a separate card purchase. The dual-channel setup and voice control suggest a feature-rich system, but the need for a separate hardwire kit if you want the full 4G parking-monitoring experience means this is not the most plug-and-forget package.

Is it better value than cheaper alternatives?

Compared with the VIOFO A119 V3 at £109.99, the 70mai is far more expensive, but the VIOFO is front-camera only. Compared with the Nextbase 222x and 222XR at £109.99 and £119.99 respectively, the 70mai again costs more, but it brings 4K front recording, dual STARVIS 2 sensors, included 128GB storage, and 4G capability. If you only want basic front-and-rear coverage, the Nextbase options are better value; if you want higher-end imaging and more advanced features, the A810S justifies its price more easily.

Should UK drivers buy it?

For UK roads, the A810S makes sense if you regularly drive at night, want dual-channel evidence, or value parking surveillance in a car that lives on the street. It is also a better fit if you want one package that already includes storage and gives you room to add 4G later. The main downside is cost: at £179.99, it is not a casual add-on, and the extra hardwire kit for 4G means the real spend can rise further.

Bottom line on value

The current £179.99 price is the all-time lowest, so this is a strong time to buy if the feature set matches your needs. The A810S is not the cheapest route into dash cam ownership, but it is one of the more complete dual-camera packages here, especially for drivers who care about night footage, parking protection, and an included 128GB card.