Kobra 2 Pro vs Sidewinder X4 Pro S1
Technical comparison · Fused filament fabrication (FFF/FDM)
Kobra 2 Pro and Sidewinder X4 Pro S1 are two fused filament fabrication (fff/fdm) in a similar class. Choose Kobra 2 Pro if max bed temperature matters more; choose Sidewinder X4 Pro S1 if native klipper and work area matters more. On the category's overall technical index, Sidewinder X4 Pro S1 scores 33/100 against 22/100 for Kobra 2 Pro.
| Parameter |
Kobra 2 Pro
Anycubic
F1 · Entry
|
Sidewinder X4 Pro S1
Artillery
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Launch year | 2023 | 2024 |
| Use tier | F1 — Entry | F2 — Intermediate |
| Price | ||
| Price (€) | ~250–320 € | ~270–320 € |
| Price updated on | 06/2026 | — |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 43.5 × 46.3 × 48.6 cm | 45.3 × 43.1 × 51.2 cm |
| Weight (kg) | 8.4 kg | — |
| Work area (mm) | 220 × 220 mm | 240 × 240 mm |
| Z-axis height (mm) | 250 mm | 260 mm |
| Power (W) | 400 W | 300 W |
| Maximum speed | 500 mm/s | 500 mm/s |
| Declared precision | 0.1 mm | — |
| Category specs | ||
| XY print surface (mm) | 220 mm | 240 mm |
| Maximum Z height (mm) | 250 mm | 260 mm |
| Kinematics | cartesian | cartesian |
| Max nozzle temperature (°C) | 260 °C | 300 °C |
| Max bed temperature (°C) | 110 °C | 100 °C |
| Max print speed (mm/s) | 500 mm/s | 500 mm/s |
| Closed chamber | False | False |
| Filament sensor | True | — |
| Auto leveling | mesh | mesh |
| Standard nozzle diameter (mm) | 0.4 mm | — |
| Multi-extruder | False | False |
| Native Klipper | False | True |
| Input shaper | True | True |
| Multicolor printing | false | False |
| Requires external accessory | — | False |
| Maximum colors | 1 | — |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | Anycubic Kobra OS (a closed Klipper-based system) compatible with the Anycubic mobile app for remote control. Supports all major slicers. | Native Klipper firmware with a 64-bit ARM 1.5 GHz processor. The printer is controlled via Wi-Fi from the Fluidd or Mainsail web interface, sending G-code from any slicer (Cura, PrusaSlicer, OrcaSlicer). No proprietary software required; USB/Type-C connection allows offline control. The user has full access to macros and advanced Klipper tuning, without hardware modifications. |
The differences that matter
- Native Klipper: Sidewinder X4 Pro S1 yes, Kobra 2 Pro no
- Work area: Kobra 2 Pro 220×220 mm vs Sidewinder X4 Pro S1 240×240 mm — Sidewinder X4 Pro S1 wins (+19%)
- Max nozzle temperature: Kobra 2 Pro 260 °C vs Sidewinder X4 Pro S1 300 °C — Sidewinder X4 Pro S1 wins (+15%)
- Max bed temperature: Kobra 2 Pro 110 °C vs Sidewinder X4 Pro S1 100 °C — Kobra 2 Pro wins (+10%)
Which one to choose
Choose Kobra 2 Pro if…
you value max bed temperature. «A heated bed reduces the thermal gradient between the part and the environment, limiting warping and delamination. Up to 60 °C covers PLA and flexible materials. Between 80 and 110 °C it enables PETG, ABS, and ASA. Above 110 °C it is necessary for PC and high-temperature technical materials. Bed temperature should be evaluated alongside nozzle temperature: a high-rated bed adds little value if the nozzle cannot reach the corresponding threshold.»
Choose Sidewinder X4 Pro S1 if…
you value native klipper, work area and max nozzle temperature. «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.»
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