Kobra S1 ACE 2 Pro Combo vs Sidewinder X4 Pro S1
Technical comparison · Fused filament fabrication (FFF/FDM)
Kobra S1 ACE 2 Pro Combo and Sidewinder X4 Pro S1 are two fused filament fabrication (fff/fdm) in a similar class. Choose Kobra S1 ACE 2 Pro Combo if closed chamber matters more; choose Sidewinder X4 Pro S1 if price matters more.
| Parameter |
Kobra S1 ACE 2 Pro Combo
Anycubic
F2 · Intermediate
|
Sidewinder X4 Pro S1
Artillery
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Launch year | 2026 | 2024 |
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | 599 € | ~270–320 € |
| Price updated on | 06/2026 | — |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 40 × 41 × 49 cm | 45.3 × 43.1 × 51.2 cm |
| Weight (kg) | 21.7 kg | — |
| Work area (mm) | 250 × 250 mm | 240 × 240 mm |
| Z-axis height (mm) | 250 mm | 260 mm |
| Power (W) | 1300 W | 300 W |
| Maximum speed | 600 mm/s | 500 mm/s |
| Declared precision | 0.1 mm | — |
| Category specs | ||
| XY print surface (mm) | 250 mm | 240 mm |
| Maximum Z height (mm) | 250 mm | 260 mm |
| Kinematics | corexy | cartesian |
| Max nozzle temperature (°C) | 320 °C | 300 °C |
| Max bed temperature (°C) | 120 °C | 100 °C |
| Max print speed (mm/s) | 600 mm/s | 500 mm/s |
| Closed chamber | True | False |
| Filament sensor | True | — |
| Auto leveling | mesh | mesh |
| Standard nozzle diameter (mm) | 0.4 mm | — |
| Multi-extruder | False | False |
| Native Klipper | True | True |
| Input shaper | True | True |
| Multicolor printing | true | False |
| Requires external accessory | false | False |
| Maximum colors | 8 | — |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | Compatible with the main slicers on the market. It supports cloud connectivity via the Anycubic app and Wi-Fi for remote monitoring, while still allowing offline use via USB. | 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
- Price: Kobra S1 ACE 2 Pro Combo 599 € vs Sidewinder X4 Pro S1 295 € — Sidewinder X4 Pro S1 wins (+103%)
- Closed chamber: Kobra S1 ACE 2 Pro Combo yes, Sidewinder X4 Pro S1 no
- Multicolor printing: Kobra S1 ACE 2 Pro Combo yes, Sidewinder X4 Pro S1 no
- Max print speed: Kobra S1 ACE 2 Pro Combo 600 mm/s vs Sidewinder X4 Pro S1 500 mm/s — Kobra S1 ACE 2 Pro Combo wins (+20%)
- Max bed temperature: Kobra S1 ACE 2 Pro Combo 120 °C vs Sidewinder X4 Pro S1 100 °C — Kobra S1 ACE 2 Pro Combo wins (+20%)
Which one to choose
Choose Kobra S1 ACE 2 Pro Combo if…
you value closed chamber, multicolor printing and max print speed.
Choose Sidewinder X4 Pro S1 if…
you value price and maximum z height.
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