Elegoo Mars 4 vs Elegoo Saturn 3 Ultra

  • The Elegoo Saturn 3 Ultra wins, 8 vs 7.2 out of 10.
  • Saturn 3 Ultra prints 3.6× the volume (218×123×260 ÷ 153×77×165 = 3.59) for $150 ($299 − $149) more.
  • Saturn 3 Ultra is faster, 150 vs 80 mm/s.
  • Pick the Mars 4 if your prints fit in 16.5 cm.

Specs and US prices from the PrintPick catalog, checked 2026-09-29. Scores are PrintPick ratings out of 10.

The verdict

Buy the Saturn 3 Ultra.

8/10 vs Mars 4's 7.2/10, and it wins 3 of 5 categories. If you've hit the Mars build plate limit, this is the obvious upgrade. 12K detail at this scale, tilt release, and a plate big enough for a squad or terrain set in one run. The price is fair for what you get.

Specs, side by side

Teal wins the row.

Mars 4Elegoo · RESIN
vs
Saturn 3 UltraElegoo · RESIN
Mars 4 and Saturn 3 Ultra compared: specs
Mars 4SpecSaturn 3 Ultra
$149 (wins)Price$299
1.9 LBuild volume7.0 L (wins)
80 mm/sTop speed150 mm/s (wins)
0.02 mmFinest layer0.01 mm (wins)
6.2 kgWeight10.5 kg

Features

Features of the Mars 4 and Saturn 3 Ultra
Mars 4FeatureSaturn 3 Ultra
Yes7K mono LCDNo
YesWiFiYes
YesUSBNo
No12K mono LCDYes
NoTilt releaseYes
NoAir purifierYes
NoLarger build plateYes

Value math

$149 ÷ 1.9 L and $299 ÷ 7.0 L. Lower is more printer for the money.

Mars 4 and Saturn 3 Ultra compared: price per liter of build volume and per mm/s of speed
Mars 4SpecSaturn 3 Ultra
$76.65$ per liter$42.89 (wins)
$1.86 (wins)$ per mm/s$1.99

Scores out of 10

Mars 4 and Saturn 3 Ultra compared: PrintPick scores out of 10
Mars 4SpecSaturn 3 Ultra
10 (wins)Value9
6Beginner Friendliness6
8Print Quality10 (wins)
5Speed7 (wins)
7Reliability8 (wins)
7.2Overall8 (wins)

Build space, front view, to one scale

  • 153 × 77 × 165 mm
  • 218 × 123 × 260 mm

What owners say

  • At $149 you're getting a genuinely capable printer. Elegoo's quality control shines even at this price.
    Mars 4 owner, r/resinprinting
  • Perfect starter resin printer. Just buy extra FEP films, you'll go through them.
    Mars 4 owner, r/PrintedMinis
  • Printed 32 minis in one run at 12K. The Saturn 3 Ultra has ruined other printers for me.
    Saturn 3 Ultra owner, r/PrintedMinis
  • This is the resin printer I recommend to anyone who is serious about the hobby.
    Saturn 3 Ultra owner, 3D Printing Nerd (YouTube)

Pros & Cons

Mars 4

  • +$149 entry into Elegoo's quality resin lineup
  • +7K resolution is still detailed enough for D&D and Warhammer minis
  • +WiFi monitoring included even at this price
  • −No tilt release: FEP films will need replacing more often than the Ultra variants
  • −7K detail is noticeably softer than the 9K and 12K machines on fine surface textures

Saturn 3 Ultra

  • +218x123mm plate holds a full 10-model squad in one run at 12K resolution
  • +Tilt release on a plate this size dramatically reduces FEP tears
  • +Terrain, dungeon tiles, and large busts all fit without splitting
  • −A full plate run goes through resin fast: budget for 500ml+ per session
  • −Post-processing for a full plate takes the better part of an hour

Frequently Asked Questions

Is the Elegoo Mars 4 better than the Elegoo Saturn 3 Ultra?

By the numbers, the Elegoo Saturn 3 Ultra scores higher (8/10). But "better" depends on your use case, the Elegoo Mars 4 may be the smarter buy if you need budget.

Which is better for beginners, Elegoo Mars 4 or Elegoo Saturn 3 Ultra?

Both score 6/10 for beginners. Go with the Elegoo Mars 4 to save $150.

Is the Elegoo Saturn 3 Ultra worth $150 more than the Elegoo Mars 4?

The Elegoo Saturn 3 Ultra scores higher overall (8/10 vs 7.2/10). The extra $150 gets you 218x123mm plate holds a full 10-model squad in one run at 12k resolution.

What's the main difference between Elegoo Mars 4 and Elegoo Saturn 3 Ultra?

Build volume (153x77x165mm vs 218x123x260mm) and print speed (80 vs 150 mm/s). The Elegoo Mars 4 is best for budget; the Elegoo Saturn 3 Ultra targets resin.

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