Prusa Research MK4S 3D Printer kit vs Qidi Tech i-Fast
Technical comparison · Fused filament fabrication (FFF/FDM)
MK4S 3D Printer kit and i-Fast are two fused filament fabrication (fff/fdm) in a similar class. Choose MK4S 3D Printer kit if price and max print speed matters more; choose i-Fast if work area and enclosed chamber matters more. On the category's overall technical index, i-Fast scores 45/100 against 34/100 for MK4S 3D Printer kit.
| Parameter |
MK4S 3D Printer kit
Prusa Research
F2 · Intermediate
|
i-Fast
Qidi Tech
F3 · Advanced
|
|---|---|---|
| Identity | ||
| Launch year | 2025 | 2021 |
| Use tier | F2 — Intermediate | F3 — Advanced |
| Price | ||
| Price (€) | 819 € | ~1800–2500 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 50 × 55 × 40 cm | 71 × 51 × 67 cm |
| Weight (kg) | 7 kg | 33 kg |
| Work area (mm) | 250 × 210 mm | 330 × 250 mm |
| Z-axis height (mm) | 220 mm | 320 mm |
| Power (W) | 240 W | — |
| Voltage (V) | 230 V | — |
| Maximum speed | 500 mm/s | 150 mm/s |
| Category specs | ||
| Footprint X×Y (short side) (mm) | 250 mm | 250 mm |
| Build height Z (mm) | 220 mm | 320 mm |
| Kinematics | Cartesian | CoreXY |
| Max nozzle temperature (°C) | 290 °C | 300 °C |
| Max bed temperature (°C) | 120 °C | 100 °C |
| Max print speed (mm/s) | 500 mm/s | 150 mm/s |
| Enclosed chamber | False | True |
| Filament sensor | True | True |
| Auto bed leveling | Mesh | — |
| Standard nozzle diameter (mm) | 0.4 mm | 0.4 mm |
| Multi-extruder | False | True |
| Native Klipper | False | False |
| Input shaper | True | False |
| Multicolor printing | True | True |
| Multicolor requires accessory | True | False |
| Max colors | 5 | 2 |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | 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 machine comes with the proprietary Qidi Print software, a slicer based on proven open-source architectures, specifically optimized for the profiles of the technical materials supported by the printer. Users can still generate G-code using other widely adopted third-party slicers on the market, such as Ultimaker Cura, PrusaSlicer, or Simplify3D, after manual configuration of machine and extruder parameters. Although it lacks native cloud features or advanced remote connectivity for corporate fleet management, it supports direct file transfer via local Wi-Fi or USB drives, ensuring a secure offline workflow for intellectual property protection. |
The differences that matter
- Price: MK4S 3D Printer kit 819 € vs i-Fast 2150 € — MK4S 3D Printer kit wins (+163%)
- Max print speed: MK4S 3D Printer kit 500 mm/s vs i-Fast 150 mm/s — MK4S 3D Printer kit wins (+233%)
- Max colors: MK4S 3D Printer kit 5 vs i-Fast 2 — MK4S 3D Printer kit wins (+150%)
- Work area: MK4S 3D Printer kit 250×210 mm vs i-Fast 330×250 mm — i-Fast wins (+57%)
- Enclosed chamber: i-Fast yes, MK4S 3D Printer kit no
Which one to choose
Choose MK4S 3D Printer kit if…
you value price, max print speed and max colors.
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.