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Shipping calculated at checkout.
- 7-inch 9K mono LCD
- 8520x4320 resolution
- Up to 150mm/h
- High-Speed Wifi Transfer
- Powerful Linux OS
- 4-point leveling system
- Build volume of 153.36x77.76x165 mm³
Product information
Where We Ship
Orders placed on ELEGOO UK (uk.elegoo.com) can be shipped to United Kingdom, Jersey and Guernsey.
Estimated Delivery Time:
In-stock Product: 3-7 workdays for delivery.
Pre-owned Product: 4-14 workdays for delivery.
Pre-order Product: We will ship the product according to the estimated delivery time on the page, after shipment, it takes 3-7 workdays.
Shipping Restrictions
- Please note that we are unable to ship to P.O. Boxes, BFPO addresses and Bermuda.
- Due to high transportation costs, some pre-owned products (good used/for parts only/damaged) and OrangeStorm Giga will not support delivery to the Scottish Highlands, Scottish Islands, Northern Ireland, Jersey, Guernsey.
- You may only ship to one address per order. If your order contains items that require shipping to multiple locations, you’ll need to place separate orders for each address.
Shipping Fees:
For orders shipped to the United Kingdom (EXCEPT for several countries and regions listed below), we are responsible for customs duties.
Several countries and regions are: Norway, Switzerland, Las Palmas (ES), Santa Cruz de Tenerife (ES), Ceuta (ES), Melilla (ES), Åland Islands (FI), etc.
Ownership, Terms, and Risk
Please ensure your address details are correct as once the parcel is on its way we cannot re-direct it. It is your responsibility to check and verify. Should any loss be incurred due to the input of an incorrect address or a fraudulent transaction, you will be held responsible as the sole bearer of the pecuniary loss.
Note: Please do not enter any PO Box address, otherwise your package can’t be dispatched by any express.
Normally the orders that have been shipped out (you have received the tracking number or your order status has been completed) cannot be canceled. If you have to refuse delivery due to force majeure after the package is dispatched from ELEGOO, you are subject to the return and refund policies and must pay for the original shipping charges, which will be deducted from your refund.
If you do not contact the delivery company within 5 days after the delivery attempt, they may return the goods to us. A return charge may be assigned to us which may be twice of the delivery cost. If the case of this happens, we reserve the right to ask you to pay the return charge plus an additional re-delivery cost before we re-dispatch the item to you.
When the goods are delivered, please check that the order is complete and undamaged. If there is any damage to the goods at the point of delivery, you can contact us: info@elegoo.com
Following a successful transaction you will be notified when your order has been dispatched with a tracking number provided, if you do not receive a tracking number within 48 hours of completing your purchase, we ask that you first check your email “Junk/Spam” folder and then contact us: info@elegoo.com
Refund Policy & Warranty Info
Thank you for your purchase. We hope you are happy with your purchase. However, if you are not completely satisfied with your purchase for any reason, ELEGOO provides a straightforward warranty that is processed in the most hassle-free way possible. Please refer to the warranty policy below, as warranty periods and warranty rules differ according to the models and parts list.
Warranty Policy
1. Warranty timeline
2. Warranty Period
All times shown on this page are calculated from the date the original order was received. If you receive free replacement products or accessories, the warranty period will still be calculated from the date the original order was received.
3. Warranty Forfeiture
The following Conditions Are Not Covered Under Warranty:
A. Product is not from ELEGOO or distributors authorized by ELEGOO
B. Products without purchase receipt or any other sufficient proofs of purchase
C. Lost or stolen products
D. Items that have expired their warranty period
E. Non-quality-related issues (after 30 days of purchase)
F. Free products
G. Repaired by a third party or modified by an individual
H. Damage from outside sources
I. Damage from misuse of products (including, but not limited to: resin leakage, falls, and operating devices improperly)
J. Normal discoloration, wear, or consumption during product use
K. The LCD screen cannot provide an SN code
Return & Refund Policy
1. For Unwanted Items
*This clause does not apply to Pre-owned & Refurbished items.
Please note that all return requests must first be submitted to our official customer service team, and the package must be returned to our designated address (unless our customer service team recommends refusing the package), as failure to do so could result in liability for any lost items. Any return not confirmed and monitored by customer support may be lost.
If the Elegoo product that you purchased does not meet your satisfaction but was not confirmed defective by certified Elegoo technicians, we refer to such a product as an "unwanted product".
A. For unopened products (with all original tags and labels attached), you can return them within 14 days of delivery for a refund with an "unwanted reason". Original shipping charges are non-refundable (including free shipping products). Return shipping charges are the customer's responsibility (if ELEGOO provides a shipping label, the shipping fee will be deducted from the refund), and ELEGOO will apply a 5% restocking fee based on the order amount. The refund will be issued in the same currency as the purchase, minus any taxes, import duties, and original shipping charges.
B. For open-box and unused products, within 14 days of delivery, you can return them for a refund with an "unwanted reason". Original shipping charges are non-refundable (including free shipping products). Return shipping charges are the customer's responsibility (if ELEGOO provides a shipping label, the shipping fee will be deducted from the refund), and ELEGOO will apply a 5% restocking fee based on the order amount. The refund will be issued in the same currency as the purchase, minus any taxes, import duties, and original shipping charges.
C. For used products or orders beyond 14 days, refunds for unwanted products are not available.
Important:
1. If the customer service team/technical team confirms the return or exchange of the machine, the original machine must be sent out within 7 days (the return label provided by our company is valid for 7 days). Otherwise, it will be deemed that the plan has been abandoned. Subsequent contact with us will require re-troubleshooting and confirmation of the problem, and the time when the problem first occurred will also be reset. A refund or a new machine will be arranged after we receive the returned machine.
2. After receiving the goods, please keep the original box for at least 14 days. If you need to return the goods, you must pack the products in the original box.
3. The returning product will be thoroughly inspected by Elegoo when received and a decision will be made whether the inspection criteria are met. If your returning product fails to satisfy the inspection criteria and has been shipped to Elegoo, your non-conforming product for refund will be rejected or subject to a deduction fee at Elegoo's sole discretion.
2. For Quality-Related Items
*This clause does not apply to Pre-owned & Refurbished items.
Please note that all return requests must first be submitted to our official customer service team, and the package must be returned to our designated address (unless our customer service team recommends refusing the package), as failure to do so could result in liability for any lost items. Any return not confirmed and monitored by customer support may be lost.
A. Product is defective when you receive it, within 14 days of delivery, you can return defective items to Elegoo and get a full refund or replacement, and Elegoo is responsible for return shipping charges. Or you can ask Elegoo to repair defective items, and Elegoo is responsible for repair fees.
B. Beyond the 14 days but within warranty, a full refund and replacement are not available, but repair is acceptable. Elegoo is responsible for repair fees.
C. Out of warranty, Elegoo will provide free technical support, if the parts need to be replaced, the customer is responsible for the repair fees, which means the customer needs to purchase the parts and bear the freight.
Important:
1. If the customer service team/technical team confirms the return or exchange of the machine, the original machine must be sent out within 7 days (the return label provided by our company is valid for 7 days). Otherwise, it will be deemed that the plan has been abandoned. Subsequent contact with us will require re-troubleshooting and confirmation of the problem, and the time when the problem first occurred will also be reset. A refund or a new machine will be arranged after we receive the returned machine.
2. After receiving the goods, please keep the original box for at least 14 days. If you need to return the goods, you must pack the products in the original box.
3. To avoid any delay or denial of processing your refund and replacement request, please verify that the returning product must be with all parts & accessories included and all original tags and labels attached and in the original box (generic boxes will be rejected).
3. Process After Returning Product
After receiving your return and inspecting the condition of your item, we will process your return. Please allow at least 7 days from the receipt of your item to process your return. We will notify you by email when your return has been processed and move to the next warranty process, refund you the payment via Paypal, or send a new replacement to you.
Contact Us
Regarding product issues, please don't hesitate to contact us at the customer service channels below to acquire technical support, refund or exchange.
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For 3D Printer technical support: 3dp@elegoo.com
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For laser engraver technical support: lec@elegoo.com
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For order issues, unwanted item refunds, or returns: info@elegoo.com
- For STEM kits, robots technical support: service@elegoo.com
When contacting our customer service team, the buyer must provide sufficient proof of purchase (the order number from online purchases made through ELEGOO, Amazon, or other ELEGOO's authorized resellers), tell us which product you purchased, and describe the problem as clearly as possible through text, images or short videos. This will help our team to process your inquiries and help you solve the problems more efficiently.

7-Inch 9K Mono LCD
7-Inch 9K Mono LCD

Wi-Fi
Connection
Wi-Fi
Connection

HD Touch Screen
HD Touch Screen

Upgraded Air Purifier
Upgraded Air Purifier

Powerful Linux OS
Powerful Linux OS

Effortless Leveling
Effortless Leveling

7-Inch 9K Mono LCD
7-Inch 9K Mono LCD

Wi-Fi
Connection
Wi-Fi
Connection

HD Touch Screen
HD Touch Screen

Upgraded Air Purifier
Upgraded Air Purifier

Powerful Linux OS
Powerful Linux OS

Effortless Leveling
Effortless Leveling
9K Accuracy with Stunning Detail
The ELEGOO Mars 4 Ultra offers exceptional printing quality and details. It features a 7-inch 9K Mono LCD with 8520*4320 resolution that captures every tiny detail, allowing you to produce highly detailed models with an incredible 18 microns XY precision.

up to 150mm/h Printing Speed
Mars 4 Ultra's fast printing capabilities are equally impressive, allowing you to achieve a print speed of up to 150mm/H with ACF release liner film and the upcoming ELEGOO rapid standard resin.
This 3x faster printing speed enables you to produce high-quality models with incredible speed and efficiency.

High-Speed Wifi Transfer
The brand new Linux OS with built-in 4G RAM supports Wi-Fi transfer, with a transmission speed of 6-10Mbps. Plus, it is compatible with both 2.4G and 5G networks, making file transfer a breeze from your computer or mobile device.
The detachable Wifi antenna is conveniently placed on the side of the printer's Z-axis, making it easy to connect to your network.

COB Light Source + Fresnel Collimating Lens
Experience vertical and uniform exposure of 405nm wavelength beam thanks to the COB light source and Fresnel collimating lens, which provides consistent curing across the entire build area with less than a 5-degree light angle and 92% light uniformity. This ensures that your models have a smooth and even surface finish.

Stable Printing Performance
The Z-axis adopts a linear guide rail structure with an accuracy of 0.02mm, ensuring precise and stable movement to help eliminate riffles on final prints and produce smooth and delicate surfaces on your models.
The 4-point leveling system with four clockwise-tightening screws is design to eliminate the need for repeated leveling after one-time leveling, saving you time and effort.
The build plate has a laser-carved surface to enhance adhesion during the printing process, even when printing large models.

Improved Printing Experience
There is a large cooling fan and heat-conducting copper tubes positioned next to the COB light source for rapid heat dissipation. This feature not only enhances the printer's performance but also extends its service life.
The upgraded air purifier has a protective plastic case to safeguard the built-in activated carbon filter during transportation and effectively remove resin odor during printing.
The printer comes with Voxeldance Tango Slicer, which offers both static mode and dynamic mode (including smooth and high-speed mode) to improve your printing efficiency. The open-sourced GOO slice file format is compatible with third-party slicing software, such as CHITUBOX and Lychee Slicer.


The printer's mid-plate is designed with a raised step to keep the resin from flowing inside the printer, which protects the printer's internal components from damage and ensures a clean workspace.

The build platform screws have screw end caps for easier cleaning, which saves your time and effort during post-processing and maintenance.

The adjustable foot pads for improved stability ensure that the printer remains stable on uneven surfaces.
What's In Box

Mars 4 Ultra 3D Printer

Wifi Antenna

USB Air Purifer
Buy Accessory
Build Platform
Buy Accessory
Resin Tank
Buy Accessory
U Disk

Mask

Gloves

Funnel

Backup Screws

User Manual

Adapter

Tool Kit

Scraper
Specification
BUILD VOLUME
153.36 x 77.76 x 165 mm³
PRINTING SPEED
MAX 150 mm/h
LAYER THICKNESS
0.01-0.2 mm
XY RESOLUTION
18 μm (8520x4320)
Z-AXIS ACCURACY
0.02 mm
PRINTING TECHNOLOGY
MSLA
LIGHT SOURCE
COB light source + Fresnel collimating lens
LCD SCREEN SIZE
7-inch 9K mono LCD
LCD SCREEN PROTECTOR
9H hardness tempered glass
CONNECTION METHOD
USB offline printing & WiFi
SYSTEM
EL3D-4.0
SLICING SOFTWARE
Chitubox, Voxeldance Tango & Autodesk Fusion
OPERATING SCREEN
4-inch IPS touch screen
LANGUAGE
Chinese, English, Japanese, Dutch, Korean,
French, German, Russian, Italian, Spanish,
Turkish, Portuguese
AIR PURIFIER
Plug-in
OTHER FUNCTIONS
N.A.
RESIN
Supports most resins on the market (water-washable, standard, ABS-like, plant-based, etc.)
POWER REQUIREMENTS
100-240V 50/60 Hz 24V 3A
HEAT DISSIPATION METHOD
3 copper heat pipes + single fan
DIMENSIONS
227 x 227 x 443.5 mm³
NET WEIGHT
6.5kg
GROSS WEIGHT
8.6 kg
























FAQs
How long does delivery take after shipping?
1. In-stock Product: 3-7 workdays for delivery
2. Pre-owned Product: 4-8 workdays for delivery
3. Pre-order Product: We will ship the product according to the estimated delivery time on the page, after shipment, it takes 3-7 workdays for delivery.
What countries do you ship to?
Click to view available countries
Do you offer free shipping service?
Orders over £40 qualify for FREE SHIPPING. Orders under £40 will incur a delivery fee of £11.90.
For orders shipped to the United Kingdom, we are responsible for paying customs duties.
Can I change the delivery address of my package after it has been shipped out?
Unfortunately, we cannot change the shipment once the product is shipped.