Does the A400 record in 4K?

No. It records 2K QHD at 2560x1440 and 30 fps, which is sharper than 1080p but below 4K.

Can I add a rear camera?

Yes. It supports dual-channel recording, so a compatible rear camera can be added.

GPS is not built in on this model, so speed and route data are not recorded unless you add a module.

Is a microSD card included?

No. You need to supply a microSD card, and a high-endurance card is recommended for loop recording.

Does it work at night?

It has IR night vision and an F2.0 lens. Footage is usable in low light but less sharp than in daylight.

Does it need Wi-Fi to record?

No. It records continuously to the card on its own; Wi-Fi is only for the app, live view and clip transfer.

Where is the 70mai A400 2K QHD Dash Cam cheapest?

At 70mai Official, for $39.99, as of our latest check.

What do buyers say about the 70mai A400 2K QHD Dash Cam?

Rated 4.8 out of 5 from 1,200 ratings.

70mai A400 2K QHD Dash Cam

Best price now

$39.99at 70mai OfficialChecked Nov 12

Prices are checked against each store and labelled with when.

Visit 70mai Official

70mai A400 2K QHD Dash Cam

Best price now

$39.99at 70mai OfficialChecked Nov 12

Prices are checked against each store and labelled with when.

Visit 70mai Official

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Price facts

Last seen at $39.99 at 70mai Official on Nov 12.

Our take on the 70mai A400 2K QHD Dash Cam

The 70mai A400 is a windshield dash cam that records 2K QHD (2560x1440) video at 30 fps through a 145° lens with an F2.0 aperture and IR night vision. It supports dual-channel recording, so a rear camera can be added, and it has a 2-inch screen, Wi-Fi with app control, live streaming and G-sensor collision detection with loop recording to a microSD card. It suits drivers who want clear plate-level detail day and night without paying for a 4K unit. Against 1080p rivals it captures more detail; against 4K models it gives up some sharpness but keeps file sizes and card demands lower. Owners rate it highly, praising video quality and easy setup, while some note the app and night footage have limits.

Best forDrivers wanting 2K detail at a mid-range levelRideshare and delivery driversOwners who want to add a rear camera laterNight and low-light driving

Pros

2K QHD 2560x1440 recording at 30 fps
145° wide field of view covers multiple lanes
IR night vision and F2.0 lens for low light
Dual-channel support for a rear camera
Built-in Wi-Fi, app control and live streaming
G-sensor collision detection with loop recording

Cons

No 4K recording
No GPS built in on this model
2-inch screen is small for playback
Relies on microSD card, which is not included
No cellular connection, so no remote alerts

70mai A400 2K QHD Dash Cam prices at every store

70mai OfficialNew
In stock
$39.99Checked Nov 12
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70mai A400 2K QHD Dash Cam price history

Lowest price we've seen: $39.99 on Nov 13 at 70mai Official. Tracked across 1 store since Nov 13.

What reviewers say

4.8 / 51,200 ratings

Owners rate the A400 highly, calling it a solid 2K dash cam that is easy to mount and set up. Most praise the daytime footage and the app, while some find night video softer and the app occasionally slow.

What people mention

Video qualityPraisedOwners say daytime 2K footage is sharp enough to read plates and signs.
Night visionMixedReviewers find low-light footage usable but softer and grainier than daytime video.
SetupPraisedBuyers describe mounting to the glass and connecting the app as quick and simple.
AppMixedThe Wi-Fi app is useful for clips and live view, but some find it slow to connect.
ScreenCriticisedThe 2-inch display is seen as too small for comfortable playback.

About the 70mai A400 2K QHD Dash Cam

The 70mai A400 is a dual-channel dash cam that records at 2560x1440 (2K QHD) and 30 fps. It has a 145° field of view and a lens type of 3G3P+IR/F2.0. The image sensor is a GC4653, and night vision is supported.

It attaches to the windshield and sticks to the glass. A 2-inch display screen shows the picture. Footage is saved locally to a microSD card, and loop recording keeps it recording continuously.

A G-sensor detects collisions. Wi-Fi connects the dash cam to a mobile app, and live streaming is supported.

Resolution: 2560x1440 (2K QHD)
Frame rate: 30 fps
Field of view: 145°
Channels: Dual-channel
Lens: 3G3P+IR/F2.0
Image sensor: GC4653
Night vision: Yes
Display: 2-inch screen
Collision detection: G-sensor
Recording: Continuous loop recording
Storage: microSD card (local storage)
Connectivity: Wi-Fi; no cellular or Ethernet
App support: Yes, mobile app
Live streaming: Yes
Mount: Windshield, sticks to the glass

Specifications

Night Vision: Yes
Location: Indoor / Outdoor
Color: Red
Field Of View: 145° field of view
Resolution: 2560x1440
Motion Detection: G-Sensor Collision Detection
Installation Method: Sticks to the glass

Questions and answers

Does the A400 record in 4K?: No. It records 2K QHD at 2560x1440 and 30 fps, which is sharper than 1080p but below 4K.
Can I add a rear camera?: Yes. It supports dual-channel recording, so a compatible rear camera can be added.
Does it have GPS?: GPS is not built in on this model, so speed and route data are not recorded unless you add a module.
Is a microSD card included?: No. You need to supply a microSD card, and a high-endurance card is recommended for loop recording.
Does it work at night?: It has IR night vision and an F2.0 lens. Footage is usable in low light but less sharp than in daylight.
Does it need Wi-Fi to record?: No. It records continuously to the card on its own; Wi-Fi is only for the app, live view and clip transfer.
Where is the 70mai A400 2K QHD Dash Cam cheapest?: At 70mai Official, for $39.99, as of our latest check.
What do buyers say about the 70mai A400 2K QHD Dash Cam?: Rated 4.8 out of 5 from 1,200 ratings.