Elegoo Centauri Carbon 2 Combo vs Elegoo Neptune 4 Pro

  • Tied at 8 out of 10.
  • Centauri Carbon 2 Combo prints 1.3× the volume (256³ ÷ 225×225×265 = 1.25) for $190 ($449 − $259) more.
  • Same 500 mm/s top speed.
  • Pick the Neptune 4 Pro if your prints fit in 26.5 cm.

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

The verdict

Tied at 8/10. Buy the Neptune 4 Pro, $190 less.

The Neptune 4 Pro is the move if you want linear rails without paying Bambu prices. The Creality V3 KE is the comparison to make: same price, different ecosystems. Creality wins on community, Elegoo wins on hardware spec for the money.

Specs, side by side

Teal wins the row.

Centauri Carbon 2 ComboElegoo · FDM
vs
Neptune 4 ProElegoo · FDM
Centauri Carbon 2 Combo and Neptune 4 Pro compared: specs
Centauri Carbon 2 ComboSpecNeptune 4 Pro
$449Price$259 (wins)
16.8 L (wins)Build volume13.4 L
500 mm/sTop speed500 mm/s
0.08 mmFinest layer0.05 mm (wins)
19.35 kgWeight10.5 kg

Features

Features of the Centauri Carbon 2 Combo and Neptune 4 Pro
Centauri Carbon 2 ComboFeatureNeptune 4 Pro
YesEnclosed CoreXYNo
Yes4-color Canvas multi-color systemNo
Yes350C hardened steel nozzleNo
YesRFID filament detectionNo
YesAuto filament loading & tangle detectionNo
Yes5-inch touchscreenNo
NoKlipper firmwareYes
NoAuto bed levelingYes
NoDirect driveYes
NoPEI build plateYes
NoLinear railsYes

Value math

$449 ÷ 16.8 L and $259 ÷ 13.4 L. Lower is more printer for the money.

Centauri Carbon 2 Combo and Neptune 4 Pro compared: price per liter of build volume and per mm/s of speed
Centauri Carbon 2 ComboSpecNeptune 4 Pro
$26.76$ per liter$19.31 (wins)
$0.90$ per mm/s$0.52 (wins)

Scores out of 10

Centauri Carbon 2 Combo and Neptune 4 Pro compared: PrintPick scores out of 10
Centauri Carbon 2 ComboSpecNeptune 4 Pro
9Value9
7Beginner Friendliness8 (wins)
8Print Quality8
8Speed8
8 (wins)Reliability7
8Overall8

Build space, front view, to one scale

  • 256 × 256 × 256 mm
  • 225 × 225 × 265 mm

What owners say

  • Best sub-$500 multicolor 3D printer in 2026. The value proposition is insane.
    Centauri Carbon 2 Combo owner, 3D Printed Decor
  • Ultra accessible multicolor printing. CANVAS completed 31 out of 34 jobs on first attempt.
    Centauri Carbon 2 Combo owner, VoxelMatters
  • I'm an idiot, and even I was able to make a cool Fallout action figure with this printer.
    Centauri Carbon 2 Combo owner, GamesRadar+
  • Linear rails at $259 is wild. This thing flies.
    Neptune 4 Pro owner, r/3Dprinting
  • Elegoo came out swinging with the Neptune 4 series. Solid contender.
    Neptune 4 Pro owner, Maker's Muse (YouTube)

Pros & Cons

Centauri Carbon 2 Combo

  • +First enclosed multi-color CoreXY under $500
  • +91% first-attempt success rate on multi-color jobs
  • +RFID reads filament type automatically, no manual input
  • −Spool holders are finicky
  • −Loading routine doesn't get hot enough for high-temp filaments

Neptune 4 Pro

  • +Linear rails at $259 is a feature you normally pay $400+ for
  • +Klipper pre-installed with decent out-of-box profiles
  • +500mm/s sustained prints well with stock settings
  • −Early units shipped with firmware bugs that needed patching
  • −Elegoo's support community is a fraction of Creality's size

Frequently Asked Questions

Is the Elegoo Centauri Carbon 2 Combo better than the Elegoo Neptune 4 Pro?

They tie at 8/10. The Elegoo Centauri Carbon 2 Combo suits multi-color and budget, while the Elegoo Neptune 4 Pro is aimed at budget and speed.

Which is better for beginners, Elegoo Centauri Carbon 2 Combo or Elegoo Neptune 4 Pro?

The Elegoo Neptune 4 Pro is more beginner-friendly (8/10 vs 7/10) with easier setup and a gentler learning curve.

Is the Elegoo Centauri Carbon 2 Combo worth $190 more than the Elegoo Neptune 4 Pro?

The Elegoo Neptune 4 Pro actually scores higher (8/10) despite costing $190 less. The Elegoo Centauri Carbon 2 Combo only makes sense if you specifically need multi-color.

What's the main difference between Elegoo Centauri Carbon 2 Combo and Elegoo Neptune 4 Pro?

Build volume (256x256x256mm vs 225x225x265mm) and print speed (500 vs 500 mm/s). The Elegoo Centauri Carbon 2 Combo is best for multi-color; the Elegoo Neptune 4 Pro targets budget.

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