Kobra S1 Max vs Neptune 4 Max
Technical comparison · Fused filament fabrication (FFF/FDM)
Kobra S1 Max and Neptune 4 Max are two fused filament fabrication (fff/fdm) in a similar class. Choose Kobra S1 Max if maximum colors and closed chamber matters more; choose Neptune 4 Max if work area and price matters more. On the category's overall technical index, Kobra S1 Max scores 55/100 against 40/100 for Neptune 4 Max.
| Parameter |
Kobra S1 Max
Anycubic
F2 · Intermediate
|
Neptune 4 Max
Elegoo
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Launch year | 2025 | 2023 |
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | ~599–799 € | 549 € |
| Price updated on | 06/2026 | — |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 50.27 × 48.3 × 58.4 cm | 65.8 × 63.2 × 74 cm |
| Weight (kg) | — | 18.1 kg |
| Work area (mm) | 350 × 350 mm | 420 × 420 mm |
| Z-axis height (mm) | 350 mm | 480 mm |
| Power (W) | 2200 W | — |
| Voltage (V) | 220 V | — |
| Maximum speed | 600 mm/s | 500 mm/s |
| Declared precision | 0.05 mm | 0.1 mm |
| Category specs | ||
| XY print surface (mm) | 350 mm | 420 mm |
| Maximum Z height (mm) | 350 mm | 480 mm |
| Kinematics | corexy | cartesian |
| Max nozzle temperature (°C) | 350 °C | 300 °C |
| Max bed temperature (°C) | 120 °C | 85 °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 | False | True |
| Input shaper | True | True |
| Multicolor printing | True | False |
| Requires external accessory | True | False |
| Maximum colors | 4 | 1 |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | The firmware runs on a proprietary Kobra OS layer built on top of Klipper; the official slicer is Anycubic Slicer Next, derived from OrcaSlicer, available for Windows and macOS. Third-party OrcaSlicer is also supported. Remote monitoring and control are available via the Anycubic app (iOS/Android) over LAN, with no mandatory cloud connection required for ordinary printing operations. Unlike the Combo version, the ACE 2 Pro module is not included in the box. | The system relies on an open ecosystem thanks to the motherboard with pre-installed Klipper. Users can manage the machine both through the 4.3-inch capacitive touchscreen interface and via local network using the integrated web interface (Fluidd). Elegoo provides its own customized version of the Cura slicer, but the printer remains fully compatible with most third-party slicers such as PrusaSlicer, OrcaSlicer, and Simplify3D. Native support for Wi-Fi and LAN connectivity facilitates sending and monitoring G-code files without the need for physical media. |
The differences that matter
- Maximum colors: Kobra S1 Max 4 vs Neptune 4 Max 1 — Kobra S1 Max wins (+300%)
- Closed chamber: Kobra S1 Max yes, Neptune 4 Max no
- Work area: Kobra S1 Max 350×350 mm vs Neptune 4 Max 420×420 mm — Neptune 4 Max wins (+44%)
- Price: Kobra S1 Max 699 € vs Neptune 4 Max 549 € — Neptune 4 Max wins (+27%)
- Maximum Z height: Kobra S1 Max 350 mm vs Neptune 4 Max 480 mm — Neptune 4 Max wins (+37%)
Which one to choose
Choose Kobra S1 Max 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 Max if…
you value work area, 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.