Bambu Lab X1 Carbon vs Prusa Research MK4S
Technical comparison · Fused filament fabrication (FFF/FDM)
Anyone who wants an enclosed chamber for printing more delicate materials, with a slightly larger build plate, should look at the X1 Carbon. Anyone who wants to spend less and an open firmware with no mandatory cloud account should look at the MK4S.
| Parameter | ||
|---|---|---|
| Identity | ||
| Launch year | 2022 | 2025 |
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | ~1050–1250 € | 999 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 38.9 × 38.9 × 45.7 cm | 50 × 55 × 40 cm |
| Weight (kg) | 14.13 kg | — |
| Work area (mm) | 256 × 256 mm | 250 × 210 mm |
| Z-axis height (mm) | 256 mm | 220 mm |
| Power (W) | 1000 W | — |
| Voltage (V) | — | 230 V |
| Maximum speed | 500 mm/s | 500 mm/s |
| Declared precision | 7 μm | — |
| Category specs | ||
| Footprint X×Y (short side) (mm) | 256 mm | — |
| Build height Z (mm) | 256 mm | — |
| Kinematics | CoreXY | Cartesian |
| Max nozzle temperature (°C) | 300 °C | — |
| Max bed temperature (°C) | 110 °C | — |
| Max print speed (mm/s) | 500 mm/s | — |
| 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 | 16 | — |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | The printer is controlled via Bambu Studio, the proprietary slicer available for Windows, macOS, and Linux, as well as the Bambu Handy mobile app. LAN mode is supported, allowing full local control without an internet connection or cloud account. Remote monitoring via Bambu Cloud is optional. Bambu Studio accepts 3MF, STL, OBJ, and STEP files and includes advanced features such as vibration compensation and flow rate control. | 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
- Chamber: enclosed on the X1 Carbon, open on the MK4S → the X1 Carbon keeps a more stable thermal environment for materials like ABS.
- Build area: 256×256 mm vs 250×210 mm → the X1 Carbon fits slightly larger parts.
- Price: €1150 on the X1 Carbon, €999 on the MK4S → the MK4S costs less to buy.
Which one to choose
Choose X1 Carbon if…
The X1 Carbon has an enclosed chamber, useful for PLA and ABS in a more stable thermal environment, and a slightly larger build plate than the MK4S. Bambu Studio handles vibration compensation and flow control; LAN mode allows local control with no cloud account. The trade-off is a higher starting price.
Choose MK4S if…
The MK4S costs less to buy and works with any slicer that generates G-code, over an open Marlin-based protocol compatible with OctoPrint; it doesn't require a Prusa account to print. The trade-off is no enclosed chamber and a slightly smaller build plate.
Where to buy
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