70mai A810S Review
The 70mai A810S earns second place as the best value 4K dash cam because it combines strong 4K recording with features normally associated with more expensive models. Its Sony STARVIS 2 IMX678 sensor helps capture clear footage in difficult lighting, while HDR and 70mai’s low-light processing improve detail at night. Built-in GPS, Wi-Fi 6 and voice control add useful everyday features without pushing it into premium dash cam pricing.
The 70mai A810S still records at 4K 30fps rather than 60fps, while the rear camera is limited to 1080p. Some of its more advanced parking and remote features also require additional hardware, adding to the overall cost.
Best for: Drivers who want high-quality 4K recording, strong night performance and useful everyday features without paying premium dash cam prices.
70mai A810S Dash Cam
70mai A810S Review Results
Key Points in Brief
4K Recording & Night Performance:
70mai A810S 4K STARVIS 2 Recording
The 70mai A810S records native 4K footage at 30fps using a Sony STARVIS 2 IMX678 sensor. In daylight, the high resolution helps preserve useful detail in vehicles, road signs and number plates, while HDR helps balance brighter and darker areas of the image. At night, the STARVIS 2 sensor and 70mai’s Night Owl Vision help control glare and noise under street lighting and headlights. The A810S also uses an ROI algorithm designed to give extra priority to important details such as number plates.
Driving & Parking Protection:
ADAS, GPS & Parking Surveillance
The 70mai A810S combines built-in GPS and ADAS with a G-sensor that can automatically protect emergency recordings when an impact is detected. Its buffered emergency recording can also save footage from before and after an incident, giving more context around what happened. When hardwired, parking surveillance adds collision detection, time-lapse recording and AI motion detection to help monitor the car while it is parked.
Fast & Practical Everyday Use:
Wi-Fi 6, App & Voice Control
The 70mai A810S is designed to be straightforward once installed, with a 3-inch screen for basic controls and the 70mai app for accessing footage and changing settings. Wi-Fi 6 makes transferring large 4K clips faster than on the original A810, while voice control allows simple hands-free commands while driving. The A810S also supports microSD cards up to 512GB, giving plenty of storage for high-resolution footage.
70mai A810S In Action
Get a taste of what to expect
70mai A810S Review: Verdict
Performance Score
Review findings
The 70mai A810S is strongest where it matters most: video quality for the money. Its Sony STARVIS 2 IMX678 sensor records detailed 4K footage at the front, while HDR and 70mai’s low-light processing help keep recordings clearer when lighting becomes more difficult.
The A810S also has a useful set of everyday features. Built-in GPS, Wi-Fi 6 and voice control are included, while buffered emergency recording can save footage from before and after an incident. Parking surveillance adds collision detection, AI motion detection and time-lapse recording when the required hardwire kit is fitted.
There are still some compromises. The front camera records in 4K, but the compatible rear camera is limited to 1080p, so drivers who want higher-resolution recording in both directions may prefer another model. Parking surveillance also requires additional hardware, adding to the overall cost if you want to use those features.
For drivers who want strong 4K front recording, good night performance and plenty of useful features without paying premium prices, the A810S offers very good value. Its rear-camera resolution and the extra hardware needed for parking surveillance are the main trade-offs. For higher-resolution, compact and other front-and-rear alternatives, see how it compares in our Best Dash Cams UK guide.
70mai A810S Dash Cam
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70mai A810S: Common Questions
Does the 70mai A810S have parking mode?
Yes. The 70mai A810S supports parking surveillance with collision detection, AI motion detection and time-lapse recording. A compatible 70mai hardwire kit is required to power these features while the car is parked.
Does the 70mai A810S have a rear camera?
Yes. The 70mai A810S supports compatible rear cameras including the RC24, which records in 1080p HDR at 30fps using a Sony STARVIS 2 IMX662 sensor. The front camera records in 4K, so rear footage is lower resolution than the front.
What is the difference between the 70mai A810 and A810S?
The A810S keeps the A810’s 4K Sony STARVIS 2 IMX678 front sensor but adds several upgrades, including a supercapacitor, Wi-Fi 6, voice control, buffered emergency recording, support for up to 512GB storage and newer 30fps rear-camera options. For someone buying new in 2026, the A810S is the more capable model.
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