Kobra 4 Combo vs CORE One+

Technical comparison · Fused filament fabrication (FFF/FDM)

In brief

Kobra 4 Combo and CORE One+ are two fused filament fabrication (fff/fdm) in a similar class. Choose Kobra 4 Combo if price matters more; choose CORE One+ if closed chamber matters more.

Parameter
Prusa Research CORE One+ CORE One+ Prusa Research F2 · Intermediate
Identity
Launch year 2026 2026
Use tier F1 — Entry F2 — Intermediate
Price
Price (€) 499 € ~1049–1349 €
Price updated on 06/2026
Universal specs
Dimensions (W×D×H) (cm) 45.54 × 44.53 × 46.13 cm 41.5 × 44.4 × 55.5 cm
Weight (kg) 13.6 kg 22.5 kg
Work area (mm) 260 × 260 mm 250 × 220 mm
Z-axis height (mm) 260 mm 270 mm
Power (W) 240 W
Voltage (V) 230 V
Maximum speed 600 mm/s
Category specs
XY print surface (mm) 260 mm 220 mm
Maximum Z height (mm) 260 mm 270 mm
Kinematics cartesian corexy
Max nozzle temperature (°C) 300 °C 290 °C
Max bed temperature (°C) 100 °C 120 °C
Max print speed (mm/s) 600 mm/s
Closed chamber False True
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 false True
Maximum colors 4 5
Ecosystem
Cloud dependency No No
Software notes Equipped with Kobra OS firmware. It supports connectivity via USB, Anycubic Slicer, and the Anycubic mobile app for remote print monitoring and control. Integrates AI-based error detection. Natively compatible with PrusaSlicer (based on Slic3r, open-source), but it works with any slicer able to generate Marlin-flavored G-code, such as Cura, ideaMaker or Simplify3D. The firmware is a Prusa-modified Marlin 2, fully open: no lock-in to proprietary software or protocols. The user has full control over the machine, but PrusaSlicer is recommended for optimal performance, as it includes exclusive profiles and features like dynamic flow calibration.

The differences that matter

  • Price: Kobra 4 Combo 499 € vs CORE One+ 1199 € — Kobra 4 Combo wins (+140%)
  • Closed chamber: CORE One+ yes, Kobra 4 Combo no
  • Native Klipper: Kobra 4 Combo yes, CORE One+ no
  • Requires external accessory: CORE One+ yes, Kobra 4 Combo no
  • Work area: Kobra 4 Combo 260×260 mm vs CORE One+ 250×220 mm — Kobra 4 Combo wins (+23%)

Which one to choose

Choose Kobra 4 Combo if…

you value price, native klipper and work area. «Klipper is an open-source firmware that offloads trajectory calculations from the microcontroller to a host computer, enabling all advanced features including input shaper and pressure advance. Native support eliminates the need to replace the firmware, a process that voids the warranty on some machines. Relevant for users who intend to tune advanced parameters; for basic use the difference from Marlin is minimal.»

See the Kobra 4 Combo sheet →

Choose CORE One+ if…

you value closed chamber, maximum colors and max bed temperature. «A closed chamber reduces thermal gradients around the part being built, limiting warping and cracking caused by rapid cooling in high-shrinkage materials such as ABS, ASA, and PC. It also shields the mechanism from drafts and airborne particles. A closed chamber is effectively necessary for technical materials; for PLA and PETG it is an advantage, not a requirement.»

See the CORE One+ 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.