Original Prusa MK4S 3D Printer kit vs U1 3D Printer
Technical comparison · Fused filament fabrication (FFF/FDM)
Original Prusa MK4S 3D Printer kit and U1 3D Printer are two fused filament fabrication (fff/fdm) in a similar class. Choose Original Prusa MK4S 3D Printer kit if maximum colors and max bed temperature matters more; choose U1 3D Printer if work area and multi-extruder matters more. On the category's overall technical index, U1 3D Printer scores 47/100 against 32/100 for Original Prusa MK4S 3D Printer kit.
| Parameter |
Original Prusa MK4S 3D Printer kit
Prusa Research
F2 · Intermediate
|
U1 3D Printer
Snapmaker
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Launch year | 2025 | 2026 |
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | 819 € | 849 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 50 × 55 × 40 cm | 58.4 × 49.9 × 73 cm |
| Weight (kg) | 7 kg | 18.2 kg |
| Work area (mm) | 250 × 210 mm | 270 × 270 mm |
| Z-axis height (mm) | 220 mm | 270 mm |
| Power (W) | 240 W | 1150 W |
| Voltage (V) | 230 V | — |
| Maximum speed | 500 mm/s | 500 mm/s |
| Declared precision | — | 0.04 mm |
| Category specs | ||
| XY print surface (mm) | 250 mm | 270 mm |
| Maximum Z height (mm) | 220 mm | 270 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 | 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 | True |
| Native Klipper | False | True |
| Input shaper | True | True |
| Multicolor printing | True | True |
| Requires external accessory | True | False |
| Maximum colors | 5 | 4 |
| 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 primary software is Snapmaker Orca, an optimized version of the popular OrcaSlicer, which provides native management of the four toolheads and factory-calibrated material profiles. The printer can also be seamlessly managed via the Snapmaker mobile app for remote monitoring, taking advantage of the built-in 1080p camera. The internal firmware is built on Klipper, Moonraker, and Fluidd, which Snapmaker has made open-source, allowing experienced users to customize the machine and integrate it into complex workflows. |
The differences that matter
- Work area: Original Prusa MK4S 3D Printer kit 250×210 mm vs U1 3D Printer 270×270 mm — U1 3D Printer wins (+39%)
- Multi-extruder: U1 3D Printer yes, Original Prusa MK4S 3D Printer kit no
- Native Klipper: U1 3D Printer yes, Original Prusa MK4S 3D Printer kit no
- Requires external accessory: Original Prusa MK4S 3D Printer kit yes, U1 3D Printer no
- Maximum Z height: Original Prusa MK4S 3D Printer kit 220 mm vs U1 3D Printer 270 mm — U1 3D Printer wins (+23%)
Which one to choose
Choose Original Prusa MK4S 3D Printer kit if…
you value maximum colors and max bed temperature. «The maximum number of colors indicates how many distinct color zones or materials can be used in one print without manual intervention. Two colors cover most practical uses, including soluble support. Higher values are useful for complex decorative models or color-coded prototypes. Each additional color increases print time due to transition purges, so the practical benefit should be weighed against the added time cost.»
Choose U1 3D Printer if…
you value work area, multi-extruder and native klipper. «A second extruder allows printing with two different materials in the same session: soluble support material for complex geometries, or a combination of rigid and flexible in the same part. It expands process capabilities but introduces calibration complexity and the risk of oozing from the idle nozzle. Most useful for work involving geometries that require supports difficult to remove manually.»
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.