70mai United Kingdom

70mai Dash Cam 4K M800 with Built-In eMMC, Dual Sony STARVIS 2, HDR Recording, 4G LTE & Sleak Design

£168.06
Tax included. Shipping calculated at checkout.
Option: Front+Rear Cam

High-Performance 4K Imaging in a Pocket-Sized Design

The 70mai Dash Cam 4K M800 is built for drivers who demand the highest level of clarity and reliability. Despite its ultra-compact, screenless design, the M800 delivers true 4K (3840×2160) resolution powered by the industry-leading Sony STARVIS 2 IMX678 sensor, producing cinematic image quality day and night.

Paired with the RC14 rear camera (Sony STARVIS 2 IMX662), the M800 captures 4K front + 1080P rear recordings simultaneously at 30FPS—ensuring both perspectives are smooth, sharp, and full of detail.

Cinematic 4K Clarity with HDR

With enhanced HDR and advanced image tuning, every frame is rendered with rich contrast, vivid color accuracy, and realistic depth. Whether driving under harsh sunlight, moving through tunnels, or navigating complex lighting, the M800 reliably captures license plates, textures, and fast-moving details.

Dual Sony STARVIS 2 Sensors for Superior Day & Night Vision

Equipped with Sony’s next-generation STARVIS 2 technology, the M800 delivers exceptional dynamic range, excellent low-light performance, and sharper detail retrieval. Combined with 70mai’s proprietary imaging technologies:

  • MaiColor Vivid+ Solution™ – balanced daytime exposure

  • Night Owl Vision™ – enhanced clarity in low-light environments

  • Lumi Vision™ – bright, full-color night recording for parking mode

The result: lifelike, noise-controlled footage regardless of lighting conditions.

24H Smart Parking Guardian Mode

Protect your vehicle even when you’re away. The M800 supports:

  • Collision detection

  • Low-frame-rate time-lapse recording

  • Extended clarity via Lumi Vision (night parking)

Requires 70mai Hardwire Kit or 4G Hardwire Kit.

Stay Connected Anywhere with 4G Remote Monitoring

With 4G compatibility, the M800 allows you to check on your vehicle at any time through the 70mai App. Enjoy:

  • Real-time live streaming

  • Instant collision or motion alerts

  • Remote photo & video capture

  • Driving route tracking

  • Walking navigation to your car

Your vehicle is always within reach—no matter where you are.

Built-In GPS & Advanced ADAS

The M800 includes precise GPS logging for speed, location, and route history. ADAS provides real-time warnings for:

  • Lane departure

  • Forward collision

  • Nearby pedestrians or cyclists

Helping you drive smarter and safer every day.

eMMC Built-In Storage for Maximum Reliability

Unlike traditional TF cards, eMMC storage offers faster performance, longer lifespan, and greater recording stability. Your footage remains secure without the risk of video errors or corrupted files.

Lightning-Fast Wi-Fi 5GHz Transfers

Download videos at up to 40MB/s, letting you transfer a 200MB file in just a few seconds (lab tested). Share, save, or review critical footage without delay.

The Complete All-In-One 4K Dash Cam

Compact yet feature-packed, the 70mai Dash Cam 4K M800 delivers elite imaging, 24/7 protection, smart connectivity, and premium hardware in a minimalist design that doesn’t clutter your windshield.

Option: Front+Rear Cam
Product information

1. Shipping Fee &Time

Free shipping for order over £50.

Shipping to the United  Kingdom:

Order Processing Info:
Orders placed before 5:00 PM PST (Pacific Time) will be shipped the next business day (excluding weekends and holidays).
Once shipped, expect your goodies to arrive within 7-10 business 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.

1. Warranty Period

We provide limited-time warranty for purchases from 70mai Official Online Store (https://www.70mai.store/). See below for details. The warranty period starts when the original purchaser receives the products.

Item Warranty Period (Months)
Dash Cams 12
Accessories for Dash Cams 12

* This limited warranty policy only applies to products purchased at 70mai Official Online Store.

*If some eCommerce platforms, sales channels or individual sellers who promised different after-sales policies with the following description, please contact your place of purchase to implement your warranty.

*The warranty period may vary according to local laws and regulations.

2. How to claim your warranty?

STEP 1: Have all your materials in place

If an incident just occurred, you will want to collect a few basic things to have the right information. Here is what you need to have ready to go to make your claim filing as fast and easy as possible.

  • Photos & Videos — When you file your claim, you’ll be asked to send pictures to show what went wrong. Take multiple pictures so you can clearly show what the problem is and where on the product it’s located. And take a short video to show the issues.
  • Details — You’ll need to be able to describe the incident, so make sure you know the details on what happened and how.
  • Sales invoice & Order No. — Sales invoice or order confirmation email that shows the description of the product, its price and sales channel.

STEP 2: Start your claim

Please contact us at onlinehelp@70mai.com You will need to provide the claim incident information from Step 1

STEP 3: Receive your email response

Once the claim information is received, one of our team members will start processing your claim. If our team has additional questions, they’ll follow up by email to get more information specific to your claim.

3. To be qualifies for the warranty service, the following conditions must be met:
  • To damage caused by unauthorized (not included in the official product manual) modification, disassembly, opening of the product and/or attempted repairs.
  • To consumable parts, such as batteries or protective coatings, that may naturally diminish over time, unless failure has occurred due to a defect in materials or workmanship.
  • To cosmetic damage, including but not limited to scratches, dents and broken plastic on ports, unless failure has occurred due to a defect in materials or workmanship.
  • To damage caused by the use of third-party components or products.
  • To accidental damage (for example, the product is dropped from high up or suffers water damage).
  • To product failure or damage caused by major incident or natural disaster (for example, fire, earthquake, lightning etc.).
  • To damage due to incorrect installation, use and/or operation of product not in accordance with the official product manual.
  • To defects caused by normal wear or aging.
  • To damage caused by improper use of battery packs and chargers.
  • If the product’s serial number has been removed or smeared.
5. Important Note:
  • Please note that product repair may cause data loss; please back up your data first.
  • If the recipient address you provide is wrong, or the recipient refuses to receive the delivery, any resulting loss shall be borne by the recipient. If the product cannot be delivered or is rejected, it will be returned to 70mai. 70mai has the right to dispose of the product.
  • When you sign for the product, please check it is in good condition. Ensure there is no damage that may have occurred during delivery, or for any other reason.
  • If the return is caused by the consumer, the consumer should be responsible for the shipping fee. The specific fee should be based on the shipping carrier you choose; If due to our reasons, the goods received are damaged or not correct, and the consumer is not required to bear the shipping fee for this reason.
  • Once the customer agrees to a product inspection, 70mai will inspect the product, send a quote for the total repair cost, and will wait for the customer approval.

Return Policy

70mai is committed to our customers’ satisfaction. If the product did not meet your expectations or was defective, you can refer to the following policies to request a refund or exchange within 30 days from the date of delivery.

Important Note: Normally the orders that are under processing, being on hold or have been shipped out (you have received the tracking number or your order status is completed) cannot be cancelled. If you have to refuse delivery after the package is dispatched from 70mai due to force majeure, you are subject to the following return and refund policies and must pay for the original shipping charges, which will be deducted from your refund.

1. Return Policy for Products Purchased from 70mai

a) For Unwanted Products

If the 70mai product that you purchased directly from 70mai.store does not meet your satisfaction, but was not confirmed defective by 70mai, we call such product as “unwanted product”. You may return the unwanted product for a full refund or replacement within 30 days of the delivery date.

Beyond the end of those 30 days, refunds and exchanges for unwanted products are not available.

b) For Defective Products (Not Artificially Damaged)

If the product is defective (not artificially damaged) when you receive it, within 30 days of delivery, you can return to 70mai and get a full refund or replacement. 70mai are responsible for all shipping fees.

Beyond the 30 days but within warranty period, a full refund is not available, but replacement or repair is acceptable. You are responsible for the return shipping fees.

c) For Artificially Damaged Products

Refund will not be provided if the product is artificially damaged. In order to be eligible for replacement or repair, you have to return the product within 30 calendar days starting from the date when the product is delivered. All returns must be in new/unused condition with original tags and labels attached. Please keep in mind that you will be responsible for all shipping costs. After 30 days, any replacement or repair is not acceptable any more.

Please contact us at onlinehelp@70mai.com to obtain instructions to return. To better process your return, please provide us the order number provided by 70mai.store. You will receive instructions on how to properly pack the products and return them to us. Please make sure all components are included in the package.

2. Additional non-returnable items:
  • Gift cards
  • Download software products
3. Refund

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. Please allow up to 7 working days for us to examine the returned product. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take 3-7 days for your bank or credit card company to process and post the refund too.

Important Note: The Product for Refund will be thoroughly inspected by 70mai when received and a decision will be made whether the Inspection Criteria are met. If your Product for Refund fails to satisfy the Inspection Criteria (the “Non-conforming Product for Refund”) and has been shipped to 70mai, your Non-conforming Product for Refund will be rejected. The inspection may take up to 7 business days from the time your Product for Refund is received. If the Non-conforming Product for Refund is rejected by 70mai, you will be billed with the cost and fees of shipping the Non-conforming Product for Refund from 70mai back to you.

4. Return Policy for Products Purchased from a Third-Party

If the 70mai product that you have purchased from the third-party stores or vendors does not function to your satisfaction or does not apply to your installation, please contact the third-party store or vendor where the product was originally purchased for the return and refund policy. All the return and refund processes related to the 70mai products purchased from third-party stores or vendors are subject to the specific policies of the third-party stores or vendors. Please refer to the return and refund policy of the original store or vendor that you purchased your 70mai product for specific information. 70mai is not responsible for their refund and return.

5. Upgrade or Exchange Policy

70mai is unable to exchange any returned product with a different type unless the returned product satisfies all the following requirements:

  • The returned product is returned to 70mai for repair or replacement under the 70mai's limited warranty and within the warranty period;
  • The returned product is found to be defective and non-repairable by the certified 70mai RMA technicians;
  • Products under the same model to the returned product are out of stock, and it is very clear that they will not be available in the near future or the production has already been halted.

If the returned product meets the described requirements, 70mai will offer, at our sole discretion, a variety of options for substitution or an upgrade product. However, if you request a product beyond the free substitution, you may need to pay extra fees.

Important Note: For the new exchange products, you cannot request another substitution unless they are confirmed defective or non-repairable by certified 70mai RMA technicians.

6. Missing Parts Policy

In the event that your ordered product comes to your hands with parts missing, the specific policies depend on where your products are shipped from. Customers must inform us within 7 days of the delivery date if they are missing products’ part or receiving the wrong products.

If your order was not delivered or the ordered product arrived damaged, please contact 70mai customer support. In the event that your ordered product arrived damaged or incomplete due to external damages, please keep all interior and exterior packaging as this is needed when we file the shipping claim with the carrier service we used to ship your order.


We are sorry to learn that you are not 100% satisfied with your purchase. If you have any questions about our products or service. You may reach us by submitting a request.

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.

68% 4K Omni-data up

Sensor Size

90% 4K Omni-data up

Light Sensitivity

100% 4K Omni-data up

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.

In The Box

Specifications

3840x2160

Video Resolution

106x31.5x30mm

Product Size

500mAh Li-ion

Battery

-10℃~60℃

Working Temperature

Sony STARVIS 2 IMX678

Image Sensor

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

30FPS

Frame Rate

140°

FOV

Type-C

Power Port

108*37.5*27.5mm

Product Size

128GB

Built-in eMMC

1-Min/ 2-Min/ 3-Min

Video Length

70mai Night Owl Vision™
HDR
24H Smart Parking Surveillance
3 DNR
Loop Recording
Emergency Recording
G Sensor
Share Video
APP Control
Shoot Photo
Time-Lapse Recording
Built-in GPS
Route Tracking
ADAS
Collision Detection
Voice Control
70mai Lumi Vision
One-Tap Connection
Road Story Filter
GPS Auto Time Sync

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.