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Anycubic Kobra 3 Max vs Elegoo Neptune 4 Max

Technical comparison · Fused filament fabrication (FFF/FDM)

In brief

Same 420 × 420 mm bed and the same Cartesian motion, and neither is enclosed. Colour is what decides: the Kobra 3 Max prints multicolour with an add-on module, the Neptune 4 Max is single-colour only and costs 150 € less.

Parameter
Identity
Launch year 2025 2023
Use tier F2 — Intermediate F2 — Intermediate
Price
Price (€) 699 € 549 €
Price updated on 06/2026 —
Universal specs
Dimensions (W×D×H) (cm) 70.6 × 94 × 75.3 cm 65.8 × 63.2 × 74 cm
Weight (kg) 22.1 kg 18.1 kg
Work area (mm) 420 × 420 mm 420 × 420 mm
Z-axis height (mm) 500 mm 480 mm
Maximum speed 600 mm/s 500 mm/s
Declared precision 0.05 mm 0.1 mm
Category specs
Footprint X×Y (short side) (mm) 420 mm 420 mm
Build height Z (mm) 500 mm 480 mm
Kinematics Cartesian Cartesian
Max nozzle temperature (°C) 300 °C 300 °C
Max bed temperature (°C) 90 °C 85 °C
Max print speed (mm/s) 600 mm/s 500 mm/s
Enclosed chamber No No
Filament sensor Yes Yes
Auto bed leveling Mesh Mesh
Standard nozzle diameter (mm) 0.4 mm 0.4 mm
Multi-extruder No No
Native Klipper Yes Yes
Input shaper Yes Yes
Multicolor printing Yes No
Multicolor requires accessory Yes No
Max colors 8 1
Ecosystem
Cloud dependency No No
Software notes Equipped with Kobra OS, a Klipper-based firmware, controllable via a 4.3-inch touchscreen. Compatible with Anycubic Slicer and third-party software like OrcaSlicer. Features Wi-Fi for remote control via app. Multicolor printing requires the ACE Pro module, sold separately. The system relies on an open ecosystem thanks to the motherboard with pre-installed Klipper. Users can manage the machine both through the 4.3-inch capacitive touchscreen interface and via local network using the integrated web interface (Fluidd). Elegoo provides its own customized version of the Cura slicer, but the printer remains fully compatible with most third-party slicers such as PrusaSlicer, OrcaSlicer, and Simplify3D. Native support for Wi-Fi and LAN connectivity facilitates sending and monitoring G-code files without the need for physical media.

The differences that matter

  • Up to 8 colours against 1 → a multicolour object prints without manual swaps only on the Kobra, with the ACE Pro module sold separately.
  • 699 € against 549 € → the Neptune 4 Max costs 150 € less.
  • Identical 420 × 420 mm bed → space does not decide: parts of the same size fit on both.

Which one to choose

Choose Kobra 3 Max if…

you print large parts in several colours, up to 8 with the ACE Pro module. The module is sold separately, so the starting price of about 700 € goes up. The heated bed reaches 90 °C against 85 °C.

See the Kobra 3 Max sheet →

Choose Neptune 4 Max if…

you print large single-colour parts up to 420 × 420 mm and 480 mm tall, and do not want to pay for a multicolour module you would not use. You give up multicolour printing, which this machine does not offer.

See the Neptune 4 Max sheet →

Where to buy

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Filaments for these printers

The most chosen spools among the materials both printers can print according to their specifications.

All filaments →

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MakerSpecs is an independent atlas. We don't sell products: the purchase links are the same as on the two product sheets and don't influence the verdict. The sheets have the complete data.