P1S vs Neptune 4 Pro
Technical comparison · Fused filament fabrication (FFF/FDM)
P1S and Neptune 4 Pro are two fused filament fabrication (fff/fdm) in a similar class. Choose P1S if maximum colors and closed chamber matters more; choose Neptune 4 Pro if price matters more.
| Parameter |
P1S
Bambu Lab
F2 · Intermediate
|
Neptune 4 Pro
Elegoo
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Launch year | 2023 | 2023 |
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | ~399–499 € | 299 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 38.9 × 38.9 × 45.8 cm | 47.5 × 44.5 × 51.5 cm |
| Weight (kg) | 12.95 kg | 8.9 kg |
| Work area (mm) | 256 × 256 mm | 225 × 225 mm |
| Z-axis height (mm) | 256 mm | 265 mm |
| Power (W) | 1000 W | — |
| Voltage (V) | 100 V | — |
| Maximum speed | 500 mm/s | 500 mm/s |
| Declared precision | — | 0.1 mm |
| Category specs | ||
| XY print surface (mm) | 256 mm | 225 mm |
| Maximum Z height (mm) | 256 mm | 265 mm |
| Kinematics | corexy | cartesian |
| Max nozzle temperature (°C) | 300 °C | 300 °C |
| Max bed temperature (°C) | 100 °C | 110 °C |
| Max print speed (mm/s) | 500 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 | 16 | 1 |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | The P1S is managed through Bambu Studio, Bambu Lab's proprietary slicer available for Windows, macOS, and Linux, or via OrcaSlicer, the widely adopted open-source fork that provides finer parameter control. The Bambu Handy mobile app enables remote monitoring and print launching. The printer supports local LAN connections without a mandatory cloud account, though some advanced features — such as remote timelapses and OTA firmware updates — require a Bambu account. | 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: P1S 449 € vs Neptune 4 Pro 299 € — Neptune 4 Pro wins (+50%)
- Maximum colors: P1S 16 vs Neptune 4 Pro 1 — P1S wins (+1500%)
- Closed chamber: P1S yes, Neptune 4 Pro no
- Work area: P1S 256×256 mm vs Neptune 4 Pro 225×225 mm — P1S wins (+29%)
- Native Klipper: Neptune 4 Pro yes, P1S no
Which one to choose
Choose P1S if…
you value maximum colors, closed chamber and work area. «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, native klipper and max bed 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.»
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.