70mai 4K A810S Front Dashcam with STARVIS 2 HDR, ADAS, 24H Parking Monitoring (with 128GB microSD included)

What it is and why people buy it

The 70mai 4K A810S is a front-facing dashcam built around Sony STARVIS 2 technology and HDR, aimed at drivers who want clearer footage in both daylight and darker conditions. On paper, it’s designed to cover the everyday “set and forget” job of recording your journey, but it also leans into the extras most people only realise they need after something happens: incident buffering, parking monitoring, and smartphone/app control.

The essentials (the stuff you’ll notice)

The core pitch here is 4K recording supported by a Sony STARVIS 2 sensor (IMX678), paired with HDR and a wider 146° field of view. If you frequently drive in changeable lighting—morning shadows, evening glare, wet roads—this combination is the sort of setup that can make night footage more usable rather than just “there’s a dark blob”. The mention of a larger F1.7 aperture is also relevant for low-light performance, and it’s paired with 70mai’s MaiColor Vivid+ imaging approach for exposure balance and colour stability.

In practice, the A810S also comes with features meant to reduce reliance on “I must remember to press the button”. Emergency recording automatically saves footage around an impact event (with pre- and post-event time included). Meanwhile, the 24H parking monitoring is handled by AI motion detection and a time-lapse mode that compresses longer parking periods into shorter clips to help manage storage.

And yes, ADAS is included—specifically through real-time voice warnings for potential hazards—plus built-in GPS for recording speed, time, and coordinates. That’s the sort of detail that can matter if you’re trying to understand what happened, not just watch the clip.

One important caveat: parking mode features are described as requiring a 70mai Hardwire Kit, sold separately. So if you want full 24/7 behaviour while parked, you’ll need to factor that into your setup.

Key takeaways for buying decisions

This dashcam looks like a sensible mid-to-leaning-upper choice if you care about what happens at night and want recording that covers more than just your drive.

• If you prioritise night clarity and HDR performance, the STARVIS 2 + HDR + wider lens angle approach is the headline you’re paying for.
• If you want event coverage without manual intervention, the extended emergency pre-recording window is a strong practical benefit.
• If you’re planning hardwiring for parking monitoring, the AI motion detection and time-lapse mode are aimed at that use case.

Where it may not be the best match is if you only want basic front recording and don’t intend to install a hardwire kit. In that case, you could feel like you’re paying for parking-mode thinking you won’t fully use.

Tech specs (only what matters here)

• Name: 70mai 4K A810S Front Dashcam
• Type: Front dashcam
• Sensor: Sony STARVIS 2 (IMX678)
• Recording: 4K Ultra HD
• HDR: Included (Night Owl View with HDR)
• Aperture: F1.7 (larger aperture claimed)
• Field of view: 146° wide angle
• Emergency recording: records 10 seconds up to 3 minutes before an impact + 30 seconds after (up to 210 seconds total), with protected event folder
• Parking monitoring: AI motion detection and time-lapse recording (described as requiring a 70mai Hardwire Kit)
• 24-hour time-lapse rate: 1 frame/second (as described)
• ADAS: Advanced Driver Assistance System with real-time voice warnings
• GPS: Built-in, supports GPS, GLONASS, Galileo, BeiDou, and QZSS, records speed/time/coordinates
• Connectivity options: Optional 4G LTE (described as optional)
• Power reliability: built-in supercapacitor, rated for -10°C to 60°C stability and over 500,000 charge cycles (claimed)
• Included: 128GB microSD card (as stated)

Everyday use: what it’s like in real scenarios

Imagine you’re commuting at dusk on a road with streetlights that flicker as you pass trees. A basic “night mode” dashcam can struggle with overexposure near lights and flat, low-detail shadows further away. This model’s stated focus is on night recording using STARVIS 2, HDR, and the larger aperture—so the goal is to keep both bright areas and darker details more readable.

Or picture arriving back after work to find a minor incident near your car. If an impact triggers the emergency recording logic, the saved sequence includes time before and after the event, rather than only capturing the moment something is already underway. That kind of buffering can be the difference between “we have a reaction” and “we can see what led to it”.

For parking, if you’re using the AI motion detection and time-lapse mode properly (with the required hardwire kit), long stationary periods are condensed so you’re not scrolling through hours of near-identical frames.

Care & maintenance (quick, practical)

This isn’t a product you “maintain” daily in the way a machine is maintained, but with dashcams the usual routine still matters. Keep the lens area clean, check the mounting sits firmly after installation, and make sure the microSD card is functioning as expected. If you’re relying on parking mode, it also helps to be confident your power setup is done correctly via the hardwire kit.

Mini FAQ

Is the 24-hour parking monitoring included, or does it need extra hardware?

The description notes that parking mode requires a 70mai Hardwire Kit (examples listed), sold separately. So full parking behaviour depends on that installation.

Does it record before an incident, or only after?

It’s described as having extended emergency pre-recording: 10 seconds to 3 minutes before an impact, plus 30 seconds after.

What does ADAS do on this model?

ADAS provides real-time voice warnings for potential hazards, intended to improve awareness while driving.

Is GPS built in, or do I need to add anything?

The GPS module is described as built in, supporting multiple satellite systems and recording speed, time, and coordinates.

Is 4G LTE part of the package?

4G support is mentioned as optional, rather than clearly included as standard.

When it makes sense?

You should consider the 70mai 4K A810S if you want front dashcam footage that’s specifically geared towards night clarity (STARVIS 2 + HDR + F1.7) and you like the idea of emergency recording that captures the lead-up to an impact. It also suits drivers who are comfortable going beyond basic recording, especially if you’re planning to install a hardwire kit to unlock parking monitoring.

You may want to skip it if your main goal is simple front-only recording and you’re not interested in hardwiring for parking mode—because some of the “24H” features depend on extra hardware. In that scenario, you could end up paying for capabilities you won’t use.