Is the Mars 4 Ultra worth it over the Mars 5?

The Mars 5 and Mars 5 Ultra add a tilt-release vat and a newer screen, which speeds up prints. The Mars 4 Ultra still delivers comparable detail and is a solid choice if fine miniatures matter more than speed.

What resolution and build volume does it have?

It uses a 7-inch 9K mono LCD at 8520 x 4320 pixels with a 0.02 mm XY pixel pitch. The build volume is about 153 x 77 x 165 mm, sized for miniatures and small parts.

Does it need a wash and cure station?

Yes. Prints come out coated in uncured resin, so you need isopropyl alcohol for washing and UV light for curing. ELEGOO sells matching wash-and-cure units, but any brand works.

Can I print from my phone or computer over WiFi?

Yes. The printer has built-in WiFi, so you can upload sliced files from ELEGOO's software or a browser on the same network. A USB drive also works.

What resin should I use with it?

Standard 405 nm LCD resins from ELEGOO, Anycubic and Siraya Tech work well. Water-washable resins cut down on alcohol use, and ABS-like blends give tougher parts.

Is it hard to set up for a beginner?

Setup is mostly assembling the vat and build plate and leveling the plate with the included card. Expect a learning curve on exposure settings and support placement, not on the hardware.

Where is the ELEGOO Mars 4 Ultra 9K Resin 3D Printer cheapest?

At Elegoo US, for $209.00, as of our latest check.

What do buyers say about the ELEGOO Mars 4 Ultra 9K Resin 3D Printer?

Rated 4.9 out of 5 from 8 ratings.

Where can I buy the ELEGOO Mars 4 Ultra 9K Resin 3D Printer?

2 stores we checked sell it, including Elegoo US, Whatnot.

ELEGOO Mars 4 Ultra 9K Resin 3D Printer

Best price now

$209.00at Elegoo USChecked 16 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when.

Visit Elegoo US

ELEGOO Mars 4 Ultra 9K Resin 3D Printer

Best price now

$209.00at Elegoo USChecked 16 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when.

Visit Elegoo US

Ask our agent about this product

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Price facts

Last seen at $209.00 at Elegoo US on Nov 10.
Checked at 2 stores.

Our take on the ELEGOO Mars 4 Ultra 9K Resin 3D Printer

The Mars 4 Ultra is ELEGOO's mid-size 9K resin printer, built around a 7-inch mono LCD with a 8520 x 4320 pixel grid and a 0.02 mm XY pixel pitch. It adds built-in WiFi and a Linux-based mainboard with a 4-inch touchscreen, plus a replaceable COB light source and dual linear rails. It suits hobbyists and small studios printing miniatures, jewelry masters and dental or engineering prototypes who want fine detail without a large-format machine. Against the Mars 5 and Mars 5 Ultra it is the older generation, so it lacks the newer tilt-release vat and higher-contrast screen, but its detail resolution and build volume remain competitive with the Photon Mono M5s class.

Best forMiniature and tabletop paintersJewelry and dental model makersHobbyists moving up from a 2K or 4K printerSmall studios printing fine-detail parts

Pros

9K mono LCD with 0.02 mm XY pixel pitch for crisp edges
Built-in WiFi for remote file upload and monitoring
Dual linear rails and a sturdy Z column for stable layers
Replaceable COB light source and easy-to-swap FEP vat
4-inch touchscreen and a straightforward leveling routine

Cons

Resin handling, washing and curing add real cost and mess
No tilt-release vat like the Mars 5 Ultra, so longer peel times
Build volume is small for anything beyond miniatures and small parts
Fumes need ventilation; carbon filter is basic
Older generation than the Mars 5 line, with less spare-part headroom

ELEGOO Mars 4 Ultra 9K Resin 3D Printer prices at every store

Elegoo USNew
In stock
$209.00Checked 16 h ago
Visit Elegoo US
WhatnotNew
Out of stock
$209.00Checked 16 h ago
Visit Whatnot

ELEGOO Mars 4 Ultra 9K Resin 3D Printer price history

Lowest price we've seen: $209.00 on Nov 10 at Elegoo US. Tracked across 2 stores since Nov 10.

What reviewers say

Owners and reviewers rate the Mars 4 Ultra as a dependable detail printer for miniatures, praising its sharp 9K output and simple setup. Common complaints center on the smell and cleanup of resin printing and on the slower peel compared with newer tilt-vat models.

What people mention

DetailPraisedOwners say the 9K screen resolves fine features like faces and textures on miniatures.
SetupPraisedReviewers describe assembly and leveling as quick and forgiving for a first resin printer.
WiFiMixedMost find wireless uploads convenient, but some report occasional connection drops.
OdorCriticisedUsers complain about resin smell and say the printer needs a ventilated room.
Print speedCriticisedOwners note longer peel times than tilt-vat models, so tall prints take a while.
Build volumeCriticisedSome buyers find the plate too small for anything beyond miniatures and small parts.

From Whatnot

Mars 4 Ultra 9K LCD resin 3D printer with 7-inch screen
Built-in WiFi
Used and tested unit, inspected, cleaned and repaired to full working order
Overall good pre-owned condition
May be repackaged
Seller aims to make 3D printers as affordable and accessible as ink printers

Guarantee: Backed with a 30-day warranty by the seller: a fully functional unit or a free replacement (parts/units).
Returns: Whatnot Buyer Guarantee: receive your purchase on time and as described or they'll make it right.

Specifications

Color: Black

Questions and answers

Is the Mars 4 Ultra worth it over the Mars 5?: The Mars 5 and Mars 5 Ultra add a tilt-release vat and a newer screen, which speeds up prints. The Mars 4 Ultra still delivers comparable detail and is a solid choice if fine miniatures matter more than speed.
What resolution and build volume does it have?: It uses a 7-inch 9K mono LCD at 8520 x 4320 pixels with a 0.02 mm XY pixel pitch. The build volume is about 153 x 77 x 165 mm, sized for miniatures and small parts.
Does it need a wash and cure station?: Yes. Prints come out coated in uncured resin, so you need isopropyl alcohol for washing and UV light for curing. ELEGOO sells matching wash-and-cure units, but any brand works.
Can I print from my phone or computer over WiFi?: Yes. The printer has built-in WiFi, so you can upload sliced files from ELEGOO's software or a browser on the same network. A USB drive also works.
What resin should I use with it?: Standard 405 nm LCD resins from ELEGOO, Anycubic and Siraya Tech work well. Water-washable resins cut down on alcohol use, and ABS-like blends give tougher parts.
Is it hard to set up for a beginner?: Setup is mostly assembling the vat and build plate and leveling the plate with the included card. Expect a learning curve on exposure settings and support placement, not on the hardware.
Where is the ELEGOO Mars 4 Ultra 9K Resin 3D Printer cheapest?: At Elegoo US, for $209.00, as of our latest check.
What do buyers say about the ELEGOO Mars 4 Ultra 9K Resin 3D Printer?: Rated 4.9 out of 5 from 8 ratings.
Where can I buy the ELEGOO Mars 4 Ultra 9K Resin 3D Printer?: 2 stores we checked sell it, including Elegoo US, Whatnot.