Kobra 3 Max 3D Printer vs Original Prusa MK4S 3D Printer kit

Technical comparison · Fused filament fabrication (FFF/FDM)

In brief

Kobra 3 Max 3D Printer and Original Prusa MK4S 3D Printer kit are two fused filament fabrication (fff/fdm) in a similar class. Choose Kobra 3 Max 3D Printer if work area matters more; choose Original Prusa MK4S 3D Printer kit if max bed temperature matters more.

Parameter
Identity
Launch year 2025 2025
Use tier F2 — Intermediate F2 — Intermediate
Price
Price (€) 699 € 819 €
Price updated on 06/2026
Universal specs
Dimensions (W×D×H) (cm) 70.6 × 94 × 75.3 cm 50 × 55 × 40 cm
Weight (kg) 22.1 kg 7 kg
Work area (mm) 420 × 420 mm 250 × 210 mm
Z-axis height (mm) 500 mm 220 mm
Power (W) 240 W
Voltage (V) 230 V
Maximum speed 600 mm/s 500 mm/s
Declared precision 0.05 mm
Category specs
XY print surface (mm) 420 mm 250 mm
Maximum Z height (mm) 500 mm 220 mm
Kinematics cartesian cartesian
Max nozzle temperature (°C) 300 °C 290 °C
Max bed temperature (°C) 90 °C 120 °C
Max print speed (mm/s) 600 mm/s 500 mm/s
Closed chamber False False
Filament sensor True True
Auto leveling mesh mesh
Standard nozzle diameter (mm) 0.4 mm 0.4 mm
Multi-extruder False False
Native Klipper True False
Input shaper True True
Multicolor printing True True
Requires external accessory True True
Maximum colors 8 5
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 MK4S runs proprietary Prusa firmware based on Marlin, not GRBL. It is managed through PrusaSlicer (with over 180 official profiles included), Simplify3D, or Cura with community profiles. Files are loaded via USB, local network, or PrusaConnect and the Prusa mobile app; it is not compatible with LightBurn or LaserGRBL, being a filament printer. The machine can run fully offline with no cloud dependency, and receives regular firmware updates along with pre-tuned profiles for Prusament materials.

The differences that matter

  • Work area: Kobra 3 Max 3D Printer 420×420 mm vs Original Prusa MK4S 3D Printer kit 250×210 mm — Kobra 3 Max 3D Printer wins (+236%)
  • Maximum Z height: Kobra 3 Max 3D Printer 500 mm vs Original Prusa MK4S 3D Printer kit 220 mm — Kobra 3 Max 3D Printer wins (+127%)
  • Maximum colors: Kobra 3 Max 3D Printer 8 vs Original Prusa MK4S 3D Printer kit 5 — Kobra 3 Max 3D Printer wins (+60%)
  • Price: Kobra 3 Max 3D Printer 699 € vs Original Prusa MK4S 3D Printer kit 819 € — Kobra 3 Max 3D Printer wins (+17%)
  • Native Klipper: Kobra 3 Max 3D Printer yes, Original Prusa MK4S 3D Printer kit no

Which one to choose

Choose Kobra 3 Max 3D Printer if…

you value work area, maximum z height and maximum colors.

See the Kobra 3 Max 3D Printer sheet →

Choose Original Prusa MK4S 3D Printer kit if…

you value max bed temperature.

See the Original Prusa MK4S 3D Printer kit sheet →

MakerSpecs is an independent atlas. We don't sell products: this comparison links to both sheets, where you'll find complete data and official links.