Review
70mai A810S Front + Rear review
Buy this if you want dual-channel 4K-class evidence without Thinkware money. Skip it if you want radar parking or a high-street UK brand.
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The A810S is 70mai’s 4K dual with a Sony STARVIS 2 IMX678 at the front. That sensor is the reason it is in the Best 5. On a spec sheet it sits next to the VIOFO A229 Pro, not next to a 1080p mini.
The rear camera in the usual kit records 1080p on a STARVIS 2 IMX662. That is weaker than VIOFO’s 2K IMX675 rear, and stronger than a generic 1080p rear with no named sensor. For a car-park bump from behind, you still want the rear. You just should not expect 4K plates from it.
Parking is listed as collision detection, AI motion, and time-lapse. 70mai is explicit that these need a parking power module. Buffered emergency recording is listed for driving incidents. Treat parking as real only after the hardwire kit is fitted and the voltage cutoff is set for a UK 12V battery.
We have not lab-tested night plates. The sensor class is why the night grade is A-. If you want the same sensor with a 2K rear, the A229 Pro is the cleaner dual. If you want parking that sips power overnight, the Thinkware U3000 is the specialist.
Who it is for
Drivers who will hardwire a dual kit and care more about the sensor than about a 3-inch screen.
People who want 4K-class STARVIS 2 evidence without Thinkware money.
Who should skip it
Anyone who wants built-in radar or LTE cloud.
Anyone who wants a Nextbase they can take back to Halfords.
The good
- IMX678 at the front is the same class of Sony sensor used on dearer 4K duals
- Rear camera in this kit is also STARVIS 2, which is not true of every dual at this money
- Wi-Fi 6 and a 3-inch screen are on the spec sheet
The bad
- Parking power is a separate module — it is not in every box
- UK support is thinner than Nextbase
- No built-in radar
Common questions
- Why not the A229 Pro?
- A810S is the value 4K STARVIS 2 dual. A229 Pro is the default evidence dual with a clearer buffered-parking write-up on the sheet.
- Parking in the box?
- Modes exist on paper. They count after a hardwire kit.
- Rear sensor?
- STARVIS 2 rear on this kit — confirm the live Amazon title matches front+rear.
Next: how to choose, how we grade, or the Best 5.
Also consider
- VIOFO A229 Pro 2CH
4K STARVIS 2 at the front, 2K STARVIS 2 at the rear, dual HDR, and buffered parking once it is hardwired.
- Thinkware U3000
4K STARVIS 2 with built-in radar parking. The specialist if the car sits on the street overnight.
- Nextbase 622GW Front + Rear
The 4K 622GW with a 1080p rear camera in the kit. Same parking rule: hardwire, or it does not count.