High-Performance Imaging, Ultra-Compact Design.
70mai Dash Cam 4K M800 with Built-In eMMC, Dual Sony STARVIS 2, HDR Recording, 4G LTE & Sleak Design
Shipping & Returns
Row content
1. Shipping Fee &Time
Free shipping for orders over $50.
Shipping to the United States:
Order placed before 5pm (PT) will be dispatched the same day excepts weekends or public holidays. Shipping and delivery is an additional 3-7 days.
Shipping to CA/AU/KR:
Order placed before 5pm (PT) will be dispatched the next day excepts weekends or public holidays. Shipping and delivery is an additional 7-14 days.
Please allow up to 2 working days for processing your order. When your package is shipped, we will send you an email including a link and a tracking number so you can see the progress of your package.
During a sale event, shipping may be delayed due to the high volume of orders. We will process order ASAP, however if there is a significant delay, we will contact you through email.
2. Tracking Number
Once your order ships, we will send you an email including tracking number individually. Please allow 48 hours for the tracking update. If your tracking has no update over 3 working days, please contact us at onlinehelp@70mai.com, we are here to help.
3. Delivery Address
A correct and complete delivery address is essential. Otherwise your parcel may experience a delay or a lost which we are not responsible for due to the incorrect information provided by you (our customers).
We are unable to change the address once your package is already shipped out. If a package is returned to us due to an incorrect or incomplete address, we will contact you for a correction, and the package will be re-shipped at an additional shipping fee.
4. Order Cancellation
We accept order cancellation before the product is shipped. If the order is canceled you will get full refund. We cannot cancel the order if the product is already shipped out.
5. Order Modification
We don't offer order emendation after the order has been placed. If you want to change the item(s) of your order, please contact us in time to cancel the original order and replace it with a new one.
Pocket Size
4K HDR
Dual-Channel Supported
Dual Sony Starvis 2
70mai's Advance Imaging Techs
4G LTE Compatible
eMMC Built-In Storage
Pocket-Sized
The 4K M800 is built for those who demand excellence—delivering cinematic 4K image quality in a sleek, compact "pocket-sized" design. Small in size, yet uncompromising in capability, it's the ultimate blend of form and function.
Cinematic 4K Clarity
The 4K M800 delivers over four times the clarity of 1080P with its 3840×2160 resolution. But it offers more than just sharpness: HDR brings every frame to life with cinematic depth, rich contrast, and vivid color accuracy. It captures the road—from subtle lighting shifts to shadowed details and complex textures—with movie-like realism.
HDR Dual Channel Recording
The 4K M800 supports HDR recording across front and rear camera, stably capturing highlight-shadow details to deliver an enhanced dynamic range. Whether you are driving in overcast weather, bright sunlight, or transitioning through tunnels and underpasses, the 4K M800 consistently provides stunning, vibrant visuals at all times.
Dual Sony STARVIS 2 Technology
Both front and rear cameras feature the cutting-edge Sony STARVIS 2 technology, with the front using IMX678 and the rear IMX662. This provides an elite-level visual experience with ultra-high sensitivity and rich detail in all lighting conditions.
Sensor Size
Light Sensitivity
Low Light Performance
70mai's Industry-Leading Imaging Technologies
MaiColor Vivid+ Solution™
Captures clear and lifelike daytime footage by adjusting brightness where it matters most, like the road and sky. Important details such as license plates remain sharp, while glare is reduced to keep colors vivid and balanced throughout the frame.
70mai Night Owl Vision™
Low-light clarity is enhanced through dynamic exposure adjustment and high-gain image enhancement — delivering sharper images with less noise, balanced exposure, and improved glare control in dark or complex lighting conditions.
70mai Lumi Vision*
Upgraded for optimal night parking surveillance, it delivers clear, full-color footage in dark environments by extending exposure time, boosting sensor sensitivity, and reducing image noise — capturing more detail without extra lighting, even in dim garages or pitch-black streets.
*The 70mai Hardwire Kit or 4G Hardwire Kit is required for all parking surveillance functions, sold separately.
4G LTE Compatible*
Remotely monitor your vehicle in real time—whether parked or on the move. From upgraded App Live Streaming to instant alerts for collisions or suspicious activity, you're always in control. Capture photos or videos from afar, track live routes when others are driving, and even locate your car in a crowded lot with walking navigation. Smart, seamless, and always within reach.
*The 4G Hardwire Kit is required, sold separately, and available in select countries.
Built-in GPS & ADAS
The 4K M800 features built-in GPS to log speed, time, and precise routes, essential for tracking incidents and optimizing your drive. Its advanced ADAS alerts you to lane departures, forward collisions, and nearby pedestrians or cyclists, adding an extra layer of safety to every journey.
Smart Parking Guardian Mode*
The 24H Parking Surveillance offers collision detection, and time-lapse recording to safeguard your vehicle's safety while parked. Exclusively, the 4K M800 extends these features beyond the front camera.
*The 70mai Hardwire Kit is required for parking surveillance mode and is sold separately.
Voice Control*
Capture pictures/videos, toggle audio on/off - all with simple voice commands to your 4K M800, freeing your hands from manual settings.
*Voice commands are currently supported in English and Mandarin only.
Built-In Smarts. Better Performance.
eMMC Built-in Storage. Faster, Safer, Smarter.
Offers faster performance and a longer lifespan than TF cards, ensuring safer, more reliable recording without video loss, errors, or frequent replacements. Your footage stays secure, and your drive remains worry-free.
Buffered Emergency Recording
Automatically saves a 30-second emergency clip, capturing 2 seconds before and 28 seconds after impact to ensure full context when it matters most.
Wi-Fi 5GHz High-Speed Quick Download
Enjoy lightning-fast download speeds of up to 40MB/s with the newly upgraded Wi-Fi on the 5GHz band. Now, you can download a 200MB video in just 5 seconds*!
*The data is from the 70mai Lab. Download speeds may fluctuate due to factors such as environmental conditions and the smartphone used.
Easy to Install
No fuss, no muss, just simple and fast installation.
In The Box
Specifications
3840x2160
Video Resolution
Sony STARVIS 2 IMX678
Image Sensor
30FPS
Frame Rate
140°
FOV
F1.8
Aperture
Language
EN/ RU/ JA/ KO/ ES/ PT/ ZH-TW/ TH/ PL/ FR/ DE/ CZ/ RO/ HU/ UA/ VI/ ID/ PH/ IT/ TR/ AR
500mAh
Battery
128GB
Built-in eMMC
-10℃～60℃
Working Temperature
Type-C
Power Port
108*37.5*27.5mm
Product Size
NT98529
Processor
1-Min/ 2-Min/ 3-Min
Video Length
Supported Functions
FAQs
Find the answers of most asked questions here.
Why does ADAS calibration fail?
Calibration failures may be out of the following reasons:
1. The dash cam’s camera is too far from the car front, i.e. too close to the left and right sides or the upper and lower sides.
2. The car speed during most of the calibration process is less than 40 km/h.
3. The nighttime light is too dim to accurately identify the lane line.
4. The lane line is blurred and unidentifiable.
Why the dash cam doesn't work when the vehicle started?
1.Please check the connection between the dash cam, power cable and car charger.
2.This situation might caused by unmatched voltage between the cigarette lighter socket and the dash cam.
Make sure you use the standard power cable and car charger within the package in case of incompatibility issues.
Can’t find the dash cam’s Wi-Fi hotspot in your phone’s Wi-Fi hotspot list?
If you cannot see the dash cam’s Wi-Fi hotspot name in your phone’s Wi-Fi hotspot list, please refer to the followings:
1. Make sure the dash cam’s Wi-Fi hotspot is on. If it is not, press the power button to turn it on.
2. Turn off the wireless LAN (or WLAN) and then on again on your phone’s system settings. After doing all above, if you still cannot find the dash cam’s Wi-Fi hotspot, please contact customer service onlinehelp@70mai.com
When using iPhones to connect the dash cam Wi-Fi hotspot, why “Cannot join the network” prompts when inputting the password?
If you enter the wrong password when connecting the hotspot and try to input the password again in a short time, iPhone may recognize your operation as illegal. So that a pop-up dialog box “Cannot join the network xxxx (xxxx is Wi-Fi hot spot name) ” displays on the screen. In this case, please exit the password input interface, back to the Wi-Fi hotspot list, select the dash cam’s hotspot and then re-connect. If the above operation still cannot make a successful connection, please forget the dash cam’s Wi-Fi hotspot in your phone’s WLAN list then re-connect.
Why the dash cam stops recording?
The dash cam will automatically stop recording in the following situations:
1. Formatting the internal memory card
2. Restoring factory settings
3. Updating firmware
4. Any operation on the album when connected to the 70mai app
5. Detecting abnormity in the internal memory card, for instance, non-dash cam related files are detected. In this case, please format the internal memory card according to the voice prompts.
The dash cam will automatically start recording when exiting the above operations.
No driving route data displays on the screen.
Possible Reason 1: The dash cam’s positioning system fails to obtain positioning information and cannot generate driving record data.
Solution: Check the status on the dash cam’s home screen. If the positioning icon is not shown, this is the reason. Bring the dash cam to an open space and wait for around 3 minutes before trying again.
Possible Reason 2: The car did not move, so no driving record data is generated.
Solution: Ensure that the dash cam is correctly installed in the car and working normally. Drive the car over a certain distance to generate driving record data.
Possible Reason 3: Driving record data was not synchronized to the 70mai app.
Solution: See the answer to “How can I synchronize the driving record data saved in the dash cam to the 70mai app?”
Possible Reason 4: The phone has no network connection. When viewing driving records, the phone requires a network connection to load the map.
Solution: Disconnect the phone from the dash cam’s Wi-Fi hotspot and connect it to a network (WLAN or mobile data network). Tap My > Driving route to enter the “Driving route” page to view the records.
