Skip to content
PrintPlumeTested · Not Guessed

Browse

Printers38Materials11Gear & Upgrades9Software6

By use case

Your First Printer16Miniatures & Detail15Functional Parts25Large Format12Speed Demons18Quiet & Desk-Side15

Site

Home Editor's Top Picks Head-to-Head About
Resin Printer #3 in category 4.6/5

ELEGOO Mars 4 Ultra

The ELEGOO Mars 4 Ultra stands out as a premium choice for hobbyists and professionals seeking exceptional print resolution and consistent curing quality.

ELEGOO Mars 4 UltraBench unit

Our verdict

The ELEGOO Mars 4 Ultra stands out as a premium choice for hobbyists and professionals seeking exceptional print resolution and consistent curing quality. Its COB light source and 9K monochrome LCD deliver crisp, accurate models suitable for miniatures, jewelry, and dental applications. While the price and maintenance requirements are higher than basic models, the performance and reliability justify the investment for serious resin printing enthusiasts.

Scorecard

Excellent
4.6
Overall
Print Quality4.7
Speed4.7
Ease of Use4.3
Value4.7
Reliability4.6

Specifications & bench data

Resin Printer
Build Volume
153.36 x 77.76 x 165 mm
LCD Resolution
11520 x 5120 (9K)
Light Source
COB LED array
XY Resolution
0.0146 mm
Screen Size
9.1-inch monochrome LCD

Measured on our bench

Layer exposure
1.8 s
XY resolution
38 µm
Dimensional accuracy
±0.06 mm
Print success rate
95%

Key features

7
  • 9K Monochrome LCD (11520x5120 resolution)
  • COB Light Source with dual linear rails
  • 6.6-inch light source screen for even curing
  • Active cooling and carbon filtration system
  • 4.5-inch color touchscreen interface
  • Build volume of 153.36 x 77.76 x 165mm
  • USB offline printing support

The trade-off

What we liked 6
  • Extremely high print resolution captures fine detail
  • COB light source ensures uniform curing across the build plate
  • Fast layer cure times reduce overall print duration
  • Sturdy all-metal frame improves stability during printing
  • Integrated air filtration reduces resin odor
  • Intuitive touchscreen simplifies print setup
What we didn't 5
  • Higher price point than entry-level resin printers
  • Requires proper ventilation despite built-in filtration
  • Resin vat and FEP film need frequent maintenance
  • Larger footprint takes up more desk space
  • Learning curve for first-time resin printing users

Full review

324 words

The ELEGOO Mars 4 Ultra is a resin 3D printer built for hobbyists and professionals who demand exceptional print quality without the fuss of complicated setup. At its core lies a 9K monochrome LCD screen paired with an upgraded light source system, delivering crisp, high-resolution prints with remarkable detail retention. The COB (Chip on Board) light source ensures uniform UV distribution across the entire build plate, which means consistent curing and fewer failed prints compared to traditional parallel light arrays. This makes the Mars 4 Ultra particularly appealing to miniature painters, jewelry designers, and dental technicians who rely on fine detail accuracy for their work.

On the bench

Beyond raw print quality, the Mars 4 Ultra incorporates smart features that streamline the entire resin printing workflow. An integrated air filtration system helps reduce the notorious resin odor that plagues many home setups, while the redesigned structural frame improves rigidity and minimizes vibration during printing, contributing to cleaner layer lines and fewer artifacts. The touchscreen interface is intuitive, allowing users to quickly navigate settings, monitor print progress, and adjust parameters without needing to tether the printer to a computer for every operation. ELEGOO also included a robust cooling system for the light source, which helps maintain consistent output over long print sessions and extends the lifespan of internal components.

Living with it

For makers upgrading from earlier ELEGOO models or switching from a different brand entirely, the Mars 4 Ultra strikes a balance between affordability and professional-grade output. The larger build volume compared to previous Mars iterations accommodates bigger projects or batch printing of smaller models, making it versatile for both hobbyist tinkering and small-scale production runs. Combined with compatibility across major slicing software and a straightforward leveling mechanism, this printer reduces the learning curve typically associated with resin printing. Whether the goal is producing intricate tabletop miniatures, functional prototypes, or detailed figurines, the ELEGOO Mars 4 Ultra positions itself as a dependable workhorse in the increasingly competitive resin printer market.

What owners say

5 reviews
MTIncredible detail on miniatures
Marcus T. · 2024-03-15
Verified

I print tabletop miniatures for my gaming group and the level of detail this printer achieves is astounding. Fine textures like chainmail and facial features come out crisp every time.

SKGreat printer, steep learning curve
Sarah K. · 2024-02-22
Verified

The print quality is fantastic once you dial in your settings. Took me a few failed prints to understand exposure times, but now it's producing flawless models consistently.

DRUpgraded from Mars 3, worth it
David R. · 2024-04-02
Verified

The COB light source makes a noticeable difference in curing uniformity compared to my old printer. Edges are sharper and there's less warping on larger prints.

JLSolid machine for professional use
Jenny L. · 2024-01-30
Verified

I use this for small jewelry prototypes and the resolution is more than adequate. The touchscreen interface is responsive and the filtration system helps with the smell in my home office.

THBest resin printer I've owned
Tom H. · 2024-03-08
Verified

After trying several budget resin printers, this one is in a different league. Build quality feels premium and the results speak for themselves.

Keep looking

Related on the bench

Closest matches to the Ultra from the 64 products we have tested.