Viofo A229 Pro vs 70mai A810: Which 4K Dash Cam Fits Your Car
Published October 21, 2026
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The Viofo A229 Pro and 70mai A810 are both 4K two-channel dash cams, but the Viofo A229 Pro suits drivers who want the strongest rear camera and heat tolerance, while the 70mai A810 suits those who prioritize a wider front view and optional cloud features. The deciding tradeoff is rear video quality versus front coverage and connectivity: the A229 Pro records 2K rear, the A810 records 1080p rear.
Both cameras use the Sony STARVIS 2 IMX678 sensor for the front channel and offer HDR night video, GPS and Wi-Fi app control. The Viofo A229 Pro adds a supercapacitor for heat resistance and a 2K rear camera, while the 70mai A810 offers a wider 146-degree front lens and optional 4G cloud access. Neither includes a hardwire kit, so parking mode requires an extra purchase for both.
Quick verdict
The Viofo A229 Pro is the stronger choice for rear plate legibility and hot climates, while the 70mai A810 appeals for its wider front view and optional LTE remote monitoring.
Viofo A229 Pro
Rear-focused, heat-ready
Choose Viofo A229 Pro if you need clear rear plate capture at night and park in a hot, sun-exposed spot, because it has a 2K rear sensor and a supercapacitor.
70mai A810
Wide-view, cloud-capable
Choose 70mai A810 if you want a wider front field of view and the option of remote cloud alerts, because it offers a 146-degree lens and 4G accessory support.
Key takeaways
- The Viofo A229 Pro records 2K rear video, while the 70mai A810 records 1080p rear, so the A229 Pro gives more detail for rear plate reading.
- Both cameras need a separate hardwire kit for parking mode; the A229 Pro uses the HK4 Acc kit, the A810 requires a 70mai hardwire kit.
- The A229 Pro uses a supercapacitor for better heat tolerance, while the A810's power source is not specified in the available information.
- The 70mai A810 offers a wider 146-degree front lens and optional 4G cloud access, while the A229 Pro includes a CPL filter and voice control.
Table of contents9 sections · tap to expand
What is Viofo A229 Pro?
Viofo A229 Pro is a two-channel dash cam with a 4K front camera, a 2K rear camera, dual Sony STARVIS 2 sensors and a supercapacitor for heat tolerance.
What is 70mai A810?
70mai A810 is a two-channel dash cam with a 4K front camera, a 1080p rear camera, a Sony STARVIS 2 IMX678 sensor and optional 4G cloud connectivity.
At a glance
Viofo A229 Pro vs 70mai A810 at a glance
| Criterion | Viofo A229 Pro | 70mai A810 |
|---|---|---|
| Front video | 4K (2160p) at 30 fps | 4K (2160p) up to 60 fps |
| Rear video | 2K (1440p) | 1080p (Full HD) |
| Front sensor | Sony STARVIS 2 IMX678 | Sony STARVIS 2 IMX678 |
| Night video | HDR (front and rear) | HDR (front); Night Owl Vision algorithm |
| Parking mode | Buffered time-lapse, low bitrate, impact detection | Time-lapse, motion detection, impact detection |
| Hardwire kit | Sold separately (HK4 Acc) | Sold separately (70mai hardwire kit) |
| Power source | Supercapacitor | Not specified |
| Wi-Fi and app | 5 GHz Wi-Fi, VIOFO app | Wi-Fi 6, 70mai app |
| Field of view (front) | 140° | 146° |
| Extra features | CPL filter included, voice control, GPS | Optional 4G cloud, ADAS alerts, voice control, GPS |
Key differences
6 key differences between Viofo A229 Pro and 70mai A810
1. Night video and plate legibility
Both cameras use the Sony STARVIS 2 IMX678 sensor for the front channel and support HDR, but the Viofo A229 Pro extends HDR to the rear camera as well. The 70mai A810 relies on its Night Owl Vision algorithm and a wide F1.8 aperture for low-light performance. For reading plates at night, the A229 Pro's rear HDR gives it an edge when capturing vehicles behind you.
The A810's front camera can record at up to 60 fps, which may help freeze motion in good light, but frame rate alone does not guarantee plate legibility in darkness. The A229 Pro records at 30 fps, which is standard for 4K dash cams and sufficient for most evidence. If your priority is capturing clear rear plates at night, the A229 Pro's 2K rear sensor and HDR are more directly beneficial.
2. Rear camera quality and coverage
The Viofo A229 Pro records 2K (1440p) on the rear camera, while the 70mai A810 records 1080p. That resolution difference means the A229 Pro captures more detail in the rear channel, which matters for identifying vehicles behind you in a collision or hit-and-run. The A810's 1080p rear is adequate for basic coverage but less capable of reading distant plates.
Neither camera includes an interior camera, so rideshare drivers who need cabin footage would need a separate solution. For front coverage, the A810's 146-degree lens is slightly wider than the A229 Pro's 140-degree lens, which can help capture adjacent lanes. However, the A229 Pro's narrower field of view may produce less distortion at the edges.
3. Parking mode and hardware requirements
Both dash cams offer parking mode but require a separate hardwire kit to operate while the car is off. The Viofo A229 Pro supports buffered parking mode with pre-event recording (15 seconds before and 30 seconds after an impact), plus low-bitrate and time-lapse modes.
The A229 Pro's buffered mode is a real advantage for street parking: it saves the moments before a bump, which can show who was at fault. The A810's parking mode still protects your car, but without pre-buffering you may miss the seconds leading up to an incident. Both need a hardwire kit with low-voltage cutoff to protect the car battery; the A229 Pro uses the HK4 Acc kit, while the A810 requires a 70mai hardwire kit.
4. Heat tolerance and power source
The Viofo A229 Pro uses a supercapacitor, which tolerates high temperatures better than a lithium battery and is less prone to swelling in a hot car. For drivers in hot climates, the A229 Pro's supercapacitor is a concrete advantage for long-term reliability.
A supercapacitor also handles the wide temperature swings of a sun-baked windshield better than a battery, which can degrade over time. If you park outside in summer, the A229 Pro's power design reduces the risk of heat-related failure. The A810 may still perform well, but without a stated power source, it's harder to judge its heat tolerance.
5. App, Wi-Fi and everyday controls
The Viofo A229 Pro uses 5 GHz Wi-Fi for faster video transfer to the VIOFO app, and it includes 12 voice commands for hands-free control. The 70mai A810 uses Wi-Fi 6 and the 70mai app, and also supports voice control. Both offer GPS logging and loop recording with G-sensor event locking.
The A810 adds optional 4G connectivity via a hardwire kit, enabling remote live view and alerts through the cloud. That feature suits drivers who want to monitor their car when parked away from home.
6. Storage, installation and value
Both cameras support microSD cards and loop recording, but the A810 listing includes a 128GB 70mai microSD card, while the A229 Pro does not include a card. For 4K two-channel recording, a high-endurance card is recommended to handle constant write cycles. The A229 Pro comes with a 6M rear cable, which may be too short for long SUVs; VIOFO offers longer cables on its website.
Installation for both involves mounting on the windshield and routing cables, with the option of a 12V socket or hardwire kit. The A810's electrostatic mount is described as quick to install, while the A229 Pro uses a standard adhesive mount. In terms of value, the A229 Pro includes a CPL filter and a supercapacitor, while the A810 includes a memory card and offers optional 4G, so the better value depends on which extras you need.
Viofo A229 Pro: strengths and limitations
It uses a supercapacitor for heat tolerance and includes a CPL filter.
Strengths
- Supercapacitor improves heat tolerance in hot climates.
- Buffered parking mode saves the seconds before an impact.
- CPL filter included to reduce windshield glare.
Limitations
- Requires a separate hardwire kit for parking mode.
- No memory card included.
- Rear cable is 6M, which may be short for long vehicles.
Viofo A229 Pro
This listing is the Viofo A229 Pro two-channel dash cam with 4K front and 2K rear recording, dual STARVIS 2 sensors and a supercapacitor. It includes a CPL filter and supports buffered parking mode with a separate hardwire kit.
70mai A810: strengths and limitations
It offers a wide 146-degree front lens and optional 4G cloud connectivity.
Strengths
- Wider 146-degree front lens covers more side-to-side.
- Optional 4G hardwire kit enables remote monitoring and alerts.
- Includes a 128GB microSD card in this listing.
- Front camera can record at up to 60 fps.
Limitations
- Rear camera is 1080p, lower resolution than the A229 Pro's 2K rear.
- Parking mode lacks buffered pre-recording.
- Power source not specified, so heat tolerance is unclear.
70mai A810 Accessory Kit
This listing is an accessory kit for the 70mai A810, including spare mounts and adhesive pads. It does not include the dash cam itself, so it is not a substitute for the camera.
70mai A810 with 128GB Card
This listing is the 70mai A810 dash cam with a 128GB microSD card, offering 4K front and 1080p rear recording.
Decision guide
Which should you choose?
| If you… | Choose | Why |
|---|---|---|
| Rideshare or taxi driver who needs clear rear passenger and traffic footage | Viofo A229 Pro | The 2K rear camera gives more detail for reading plates behind you than the 1080p rear of the A810. |
| Driver in a hot climate who parks in direct sun all day | Viofo A229 Pro | The supercapacitor in the A229 Pro tolerates high temperatures better than a lithium battery. |
| Driver who wants the widest possible front coverage for lane changes | 70mai A810 | The 146-degree front lens on the A810 covers more side-to-side than the 140-degree lens on the A229 Pro. |
| Owner who wants remote alerts when parked away from home | 70mai A810 | The A810 supports an optional 4G hardwire kit for cloud monitoring, which the A229 Pro does not offer. |
| Buyer who wants a CPL filter included to cut windshield glare | Viofo A229 Pro | The A229 Pro includes a CPL filter; the A810 does not list one as included. |
Choose Viofo A229 Pro if
- You often drive at night and need to read plates behind you, because the A229 Pro has a 2K rear camera with HDR.
- You park on the street or in a shared lot and want buffered parking mode to capture the moments before a bump.
- You live in a hot climate and park in direct sun, because the supercapacitor resists heat better than a battery.
- You want a CPL filter included to cut glare without buying extra accessories.
Choose 70mai A810 if
- You want the widest possible front view for lane changes and intersections, thanks to the 146-degree lens.
- You need remote monitoring when parked away from home, using the optional 4G hardwire kit.
- You prefer a front camera that can record at up to 60 fps for smoother motion in good light.
- You want a memory card included in the box to start recording immediately.
See also: 7 Dash Cams Ranked for Commuters, Rideshare Drivers and Street Parkers; Viofo vs Vantrue: Which Dash Cam Brand Fits How You Drive; Viofo A119 V3 Review: Is a Front-Only 2K Dash Cam Still Worth It in 2026?.
Common questions
Frequently asked questions
Is the Viofo A229 Pro better than the 70mai A810 at night?
The Viofo A229 Pro has an edge for rear night footage because it applies HDR to both front and rear cameras, while the 70mai A810's HDR is specified for the front only. For front night video, both use the Sony STARVIS 2 IMX678 sensor, so performance is broadly similar. The A229 Pro's 2K rear sensor also captures more detail in low light than the A810's 1080p rear.
Does the 70mai A810 need a hardwire kit for parking mode?
Yes, the 70mai A810 requires a separate hardwire kit to enable parking mode, as stated in its listing. The kit provides constant power and typically includes low-voltage cutoff to protect the car battery. Without it, parking mode will not function.
Which dash cam has a better rear camera, the A229 Pro or the A810?
The Viofo A229 Pro has the better rear camera on paper because it records 2K (1440p) versus the 70mai A810's 1080p. Higher resolution means more pixels for reading plates and identifying details behind your car.
Can either camera survive summer heat parked in the sun?
The Viofo A229 Pro is better suited to extreme heat because it uses a supercapacitor, which is more heat-tolerant than a lithium battery. Both cameras should be mounted out of direct sun if possible, and neither is guaranteed against heat damage.
What microSD card should I use in a 4K two-channel dash cam?
Use a high-endurance microSD card rated for continuous recording, such as one designed for dash cams. The 70mai A810 listing includes a 128GB 70mai card, while the Viofo A229 Pro does not include a card. For 4K two-channel recording, a card with at least 128GB and U3 speed is recommended to avoid write errors.
Do these dash cams record audio and is that legal?
Both the Viofo A229 Pro and 70mai A810 can record audio, though the A229 Pro's voice control includes an option to turn audio on or off. Audio recording laws vary by state and country; some places require consent from all parties. Check your local regulations before enabling audio recording.
Bottom line
The verdict
The Viofo A229 Pro is the better fit if you prioritize rear plate legibility, buffered parking mode and heat tolerance, because it offers a 2K rear camera, pre-event recording and a supercapacitor. The 70mai A810 is the better fit if you want a wider front view, optional 4G cloud monitoring and a memory card included, though its 1080p rear camera and unspecified power source are tradeoffs.
Neither camera is universally stronger; your choice should depend on whether rear detail and heat resistance or front coverage and connectivity matter more for your driving and parking situation.
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