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Prusa Research CORE One+ vs Prusa Research MK4S

Technical comparison · Fused filament fabrication (FFF/FDM)

In brief

Two Prusas with almost the same print area, and one difference decides: the CORE One+ is enclosed, the MK4S is not. The CORE One+ costs €200 more (€1,199 against €999).

Parameter
Identity
Launch year 2026 2025
Use tier F2 — Intermediate F2 — Intermediate
Price
Price (€) ~1049–1349 € 999 €
Universal specs
Dimensions (W×D×H) (cm) 41.5 × 44.4 × 55.5 cm 50 × 55 × 40 cm
Weight (kg) 22.5 kg —
Work area (mm) 250 × 220 mm 250 × 210 mm
Z-axis height (mm) 270 mm 220 mm
Power (W) 240 W —
Voltage (V) 230 V 230 V
Maximum speed — 500 mm/s
Category specs
Footprint X×Y (short side) (mm) 220 mm —
Build height Z (mm) 270 mm —
Kinematics CoreXY Cartesian
Max nozzle temperature (°C) 290 °C —
Max bed temperature (°C) 120 °C —
Enclosed chamber Yes No
Filament sensor Yes —
Auto bed leveling Mesh —
Standard nozzle diameter (mm) 0.4 mm —
Multi-extruder No No
Native Klipper No No
Input shaper Yes —
Multicolor printing Yes Yes
Multicolor requires accessory Yes Yes
Max colors 5 —
Ecosystem
Cloud dependency No No
Software notes 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. PrusaSlicer (optimized) and Prusa Connect for remote control. The machine accepts G-code from any slicer (Cura, Simplify3D) and communicates via USB, Ethernet or Wi-Fi using an open Marlin-based protocol. Compatible with OctoPrint and offline management. Does not require a Prusa account to print, unlike machines with proprietary firmware that block features without connection.

The differences that matter

  • Enclosed chamber, yes against no → the MK4S always prints with an open frame.
  • Z height 270 against 220 mm → 5 cm more for tall parts in one piece.
  • Price €1,199 against €999 → the CORE One+ costs €200 more.

Which one to choose

Choose CORE One+ if…

Tall parts up to 270 mm printed with the chamber closed, such as a housing or technical container that should stay clear of drafts in the workshop. The trade-off is the outlay: €200 more than the MK4S, for an almost identical print area.

See the CORE One+ sheet →

Choose MK4S if…

Brackets, spares and prototypes that fit within 220 mm of height and need no chamber: that saves €200. The frame is open, so every print is exposed to the room air, and you give up 50 mm of height compared with the CORE One+.

See the MK4S sheet →

Where to buy

Paid link: the price for you does not change. Methodology
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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.