Kobra S1 vs Neptune 4 Pro
Technical comparison · Fused filament fabrication (FFF/FDM)
Kobra S1 and Neptune 4 Pro are two fused filament fabrication (fff/fdm) in a similar class. Choose Kobra S1 if maximum colors and closed chamber matters more; choose Neptune 4 Pro if price matters more. On the category's overall technical index, Kobra S1 scores 54/100 against 36/100 for Neptune 4 Pro.
| Parameter |
Kobra S1
Anycubic
F2 · Intermediate
|
Neptune 4 Pro
Elegoo
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Launch year | 2025 | 2023 |
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | 549 € | 299 € |
| Price updated on | 06/2026 | — |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 40 × 41 × 49 cm | 47.5 × 44.5 × 51.5 cm |
| Weight (kg) | 18 kg | 8.9 kg |
| Work area (mm) | 250 × 250 mm | 225 × 225 mm |
| Z-axis height (mm) | 250 mm | 265 mm |
| Maximum speed | 600 mm/s | 500 mm/s |
| Declared precision | 0.05 mm | 0.1 mm |
| Category specs | ||
| XY print surface (mm) | 250 mm | 225 mm |
| Maximum Z height (mm) | 250 mm | 265 mm |
| Kinematics | corexy | cartesian |
| Max nozzle temperature (°C) | 320 °C | 300 °C |
| Max bed temperature (°C) | 120 °C | 110 °C |
| Max print speed (mm/s) | 600 mm/s | 500 mm/s |
| Closed chamber | True | False |
| Filament sensor | True | True |
| Auto leveling | mesh | mesh |
| Standard nozzle diameter (mm) | 0.4 mm | 0.4 mm |
| Multi-extruder | False | False |
| Native Klipper | True | True |
| Input shaper | True | True |
| Multicolor printing | True | False |
| Requires external accessory | True | False |
| Maximum colors | 8 | 1 |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | The Kobra OS firmware is based on Klipper and controlled via a proprietary touch interface. The official slicer is Anycubic Slicer Next (derived from OrcaSlicer, available for Windows and macOS), but it also supports third-party OrcaSlicer. Remote control is possible via the Anycubic app (iOS/Android) over a local network, with no mandatory cloud connection for daily operations. | The machine is driven by Klipper firmware pre-installed on a proprietary 64-bit motherboard, ensuring rapid processing for advanced features like input shaping and pressure advance. The manufacturer provides a customized version of Cura (Elegoo Cura), but the printer is fully compatible with major third-party slicers such as PrusaSlicer and OrcaSlicer. Connectivity includes USB ports and a LAN network port, enabling remote management and direct print file transfers via the Fluidd or Mainsail web interfaces integrated into the system. |
The differences that matter
- Price: Kobra S1 549 € vs Neptune 4 Pro 299 € — Neptune 4 Pro wins (+84%)
- Maximum colors: Kobra S1 8 vs Neptune 4 Pro 1 — Kobra S1 wins (+700%)
- Closed chamber: Kobra S1 yes, Neptune 4 Pro no
- Multicolor printing: Kobra S1 yes, Neptune 4 Pro no
- Requires external accessory: Kobra S1 yes, Neptune 4 Pro no
Which one to choose
Choose Kobra S1 if…
you value maximum colors, closed chamber and multicolor printing. «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 Neptune 4 Pro if…
you value price and maximum z height. «The Z height determines how tall a part the machine can produce in one print. Vertical objects such as vases, load-bearing structures, or casting patterns require a high Z travel. A lower value does not affect quality but forces the user to split or reorient the model. Z height should be considered alongside the XY surface to assess total usable build volume.»
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.