Priced as of May 18, 2026
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Last reviewed May 18, 2026
TL;DR Sony STARVIS 2 IMX678 front sensor — three independent DashCamTalk community reviews confirm plate legibility and strong night vision; gizmochina calls the night footage benchmark-class. Supercapacitor design (no lithium battery) addresses the heat failures documented in the predecessor A810. Trigger-only parking mode, hardwire kit sold separately. FCC/CE only — no UL/ETL electrical safety certification.
What it is and how it performs
The A810S records front 4K and rear 1080P simultaneously with dual Sony STARVIS 2 sensors and an f/1.7 aperture. Three independent 2026 community reviews on DashCamTalk confirm daytime footage detail and plate legibility; night performance is similarly strong, with one reviewer describing usable detail on unlit backroads. The supercapacitor energy storage eliminates the battery-degradation failure mode that affected the original A810 in hot climates. Parking mode is trigger-only — AI motion detection fires a 30-second clip, but there is no pre-event buffer recording; the hardwire kit (UP03 or UP05) is sold separately and is required for all parking features. A firmware bug introduced in v1.5.40ww caused audio/video gaps on full cards; the companion app carries a 2.4-star App Store rating (543 ratings) with documented connectivity issues.
Who should buy this — and who should skip it
Strong match for drivers who want front-plus-rear 4K coverage with proven hot-climate durability — the supercapacitor design handles parked-car heat that kills lithium-battery dash cams. Skip it if buffered parking mode is the priority; the trigger-only design means no pre-event footage, and the required hardwire kit adds cost and installation work. Drivers who need a reliable app experience should also consider alternatives — the 2.4-star App Store rating reflects recurring connectivity problems.
Safety and environmental impact
Supercapacitor energy storage eliminates the lithium thermal-runaway risk present in most dash cams; no battery-specific disposal guidance is needed. At end of life, the unit qualifies for standard e-waste drop-off through Best Buy or municipal programs — no manufacturer take-back program is documented. Carries FCC and CE marks only; no UL or ETL independent electrical safety certification has been confirmed.
Frequently asked questions
Does the 70mai A810S have a battery?▾
No — it uses a supercapacitor combined with a small button cell for power retention, not a lithium-ion battery. The supercapacitor is rated to 85°C and 500,000 charge-discharge cycles, which directly addresses the heat-related failures documented in the original A810.
Does the A810S parking mode record before an impact?▾
No. The A810S uses trigger-only AI motion detection for parking — it records a 30-second clip when motion is detected, but there is no pre-event buffer. The A810S does include collision-triggered emergency recording (up to 3 minutes before + 30 seconds after) during driving, but this is not the same as buffered parking mode.
Is the hardwire kit included with the A810S?▾
No. All parking mode features require a 70mai hardwire kit (UP03 or UP05), sold separately. The standard box includes a 12V cigarette lighter adapter. Third-party hardwire kits do not work with 70mai parking mode signaling — a 70mai-specific kit is required.
Does the 70mai A810S support 5GHz WiFi?▾
No. Despite carrying a Wi-Fi 6 label, the A810S operates on the 2.4GHz band only. The Wi-Fi 6 designation refers to the protocol version, not dual-band support. Real-world measured speeds are approximately 20 MB/s on 2.4GHz.
From the manufacturer
Marketing copy from 70mai, via Amazon. Not editorial.
- •【True 4K Front + 1080P Rear Dash Cam with STARVIS 2 Sensor】Record in true 4K UHD with Sony STARVIS 2 sensor, capturing road details, license plates, and street signs in ultra clarity. The MaiColor Vivid+ Solution enhances exposure and color accuracy, ensuring balanced and lifelike footage day or night. 146° + 130° wide view covers all blind spots. Ideal dash camera for cars and road trips.
- •【Night Vision Excellence】Powered by dual Sony STARVIS 2 sensors — IMX678 (front) and IMX662 (rear) — combined with 70mai Lumi Vision black-light full-color technology, 70mai Night Owl Vision algorithm, and a large F1.7 aperture, this dash cam delivers vivid color and sharp details even in extremely dark environments. Whether driving on dim city streets, rural roads, or parking lots at night, you’ll enjoy clear, true-to-life footage with every frame.
- •【AI Motion Detection 2.0, Collision Detection & 24/7 Parking Surveillance】Smart AI algorithm detects people and vehicles with precision, while the built-in G-sensor automatically records and locks footage upon impact. 24-hour parking mode and time-lapse recording (need hardwire kit) keep your car protected at home, in garages, offices, or shopping lots. This dash camera for cars ensures full-time security even when you’re away.
- •【4G Remote Access, Real-Time Alerts & Vehicle Tracking】Connect the optional 4G hardwire kit (UP05) to unlock remote monitoring and cloud-based protection. View live footage, check your car’s location, and receive instant alerts for motion or collision events — all via the 70mai App. Whether you’re at home, in the office, or traveling abroad, this 4G dash cam feature keeps your vehicle under constant watch for total peace of mind.
- •【Built-in GPS, 5-Mode Positioning & Wi-Fi 6 Connectivity】The A810S dash cam features advanced 5-mode positioning (GPS, BDS, GALILEO, GLONASS, QZSS) for accurate speed, route, and location tracking — ideal for road trips, ride-sharing, or accident evidence. With Wi-Fi 6, enjoy ultra-fast video transfer and seamless 70mai App access for real-time previews, downloads, and firmware updates.
- •【ADAS Alerts, Voice Control, Loop Recording】The ADAS system provides real-time lane departure and forward collision warnings, keeping you alert during highway driving or city traffic. Use voice commands to take photos, lock videos, or enable Wi-Fi without touching the screen. Continuous loop recording and one-touch emergency lock secure every crucial moment
- •【Easy Installation & Local Support】Designed for quick, user-friendly installation that even beginners can complete in minutes without professional help. Backed by an 18-month warranty. If needed, optional in-person installation services are available at our service centers in New York and California (installation fee only). If any issues or disputes arise, you can always count on us to make it right—ensuring a smooth, reliable ownership experience from day one
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Manufacturer specifications
- Brand
- 70mai
- Model Name
- A810S-RC24-128GB
- Vehicle Service Type
- ATV, Bus, Car, Minivan, RV, Tractor, Truck, UTV
- Connectivity Technology
- Wi-Fi
- Special Feature
- App Control, Built-In GPS&WiFi, 4G LTE Support, ADAS, Loop Recording, G-Sensor, Night Vision, STARVIS 2 IMX678 Sensor, 4K Dash Cam, Smart Parking Monitor, AI motion detection, Time-lapse See more
- Video Capture Resolution
- 2160p
- Included Components
- Car Charger x1, Mount x1, Dash Cam x1, Rear Cam x1, Power Cord x1, Rear Cam Power Cord x1, User Manual, Wiring Crowbar x1, Electrostatic Sticker x2 See more
- Mounting Type
- Windshield Mount
- Color
- Black
- Field Of View
- 150 Degrees
- Compatible with Vehicle Type
- ATV, Bus, Car, Minivan, RV, Tractor, Truck, UTV
- Other Special Features of the Product
- App Control, Built-In GPS&WiFi, 4G LTE Support, ADAS, Loop Recording, G-Sensor, Night Vision, STARVIS 2 IMX678 Sensor, 4K Dash Cam, Smart Parking Monitor, AI motion detection, Time-lapse
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Top Amazon review
↗External — Amazon's most-helpful review for context.
Clear Video, Solid Dash Cam Setup
Really impressed with this dash cam. The 4K front camera captures very clear and detailed footage, and the rear camera adds extra peace of mind. Video quality is sharp enough to read license plates, even in low light conditions. Installation was straightforward, and the app connection makes it easy to review and download clips. It feels well-built and reliable, not cheap or flimsy. I like the loop recording and parking mode features, which make it a solid everyday setup. Overall, great value for the price and definitely worth having for safety.