Neptune 4 Pro vs J1s IDEX 3D Printer
Technical comparison · Fused filament fabrication (FFF/FDM)
Neptune 4 Pro and J1s IDEX 3D Printer are not direct competitors: very different prices (~4.2×). Neptune 4 Pro costs less (~€299) and is the entry-level choice; J1s IDEX 3D Printer offers more capability at a higher price (~€1250). Judge them by budget, not head-to-head.
| Parameter |
Neptune 4 Pro
Elegoo
F2 · Intermediate
|
J1s IDEX 3D Printer
Snapmaker
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Launch year | 2023 | 2023 |
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | 299 € | ~1100–1400 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 47.5 × 44.5 × 51.5 cm | 53.9 × 40.1 × 46.4 cm |
| Weight (kg) | 8.9 kg | 27.8 kg |
| Work area (mm) | 225 × 225 mm | 300 × 200 mm |
| Z-axis height (mm) | 265 mm | 200 mm |
| Power (W) | — | 400 W |
| Voltage (V) | — | 230 V |
| Maximum speed | 500 mm/s | 350 mm/s |
| Declared precision | 0.1 mm | — |
| Category specs | ||
| Footprint X×Y (short side) (mm) | 225 mm | 200 mm |
| Build height Z (mm) | 265 mm | 200 mm |
| Kinematics | Cartesian | IDEX |
| Max nozzle temperature (°C) | 300 °C | 300 °C |
| Max bed temperature (°C) | 110 °C | 100 °C |
| Max print speed (mm/s) | 500 mm/s | 350 mm/s |
| Enclosed chamber | False | True |
| Filament sensor | True | True |
| Auto bed leveling | Mesh | Mesh |
| Standard nozzle diameter (mm) | 0.4 mm | 0.4 mm |
| Multi-extruder | False | True |
| Native Klipper | True | False |
| Input shaper | True | True |
| Multicolor printing | False | True |
| Multicolor requires accessory | False | False |
| Max colors | 1 | 2 |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | 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. | It comes with the proprietary Snapmaker Luban software, a free, unified application available for Windows, macOS, and Linux. Luban is tailored to fully utilize the independent dual extruders (IDEX), integrating ready-to-use profiles for various print modes (Copy, Mirror, Backup). Compatibility with major third-party slicers, such as Cura or PrusaSlicer, is also ensured via standard G-code export. Direct machine control is facilitated by the integrated Android-based touchscreen display and Wi-Fi connectivity for remote management. |
The differences that matter
- Price: Neptune 4 Pro 299 € vs J1s IDEX 3D Printer 1250 € — Neptune 4 Pro wins (+318%)
- Enclosed chamber: J1s IDEX 3D Printer yes, Neptune 4 Pro no
- Max colors: Neptune 4 Pro 1 vs J1s IDEX 3D Printer 2 — J1s IDEX 3D Printer wins (+100%)
- Max print speed: Neptune 4 Pro 500 mm/s vs J1s IDEX 3D Printer 350 mm/s — Neptune 4 Pro wins (+43%)
- Build height Z: Neptune 4 Pro 265 mm vs J1s IDEX 3D Printer 200 mm — Neptune 4 Pro wins (+32%)
Which one to choose
Choose Neptune 4 Pro if…
you value price, max print speed and build height z.
Choose J1s IDEX 3D Printer if…
you value enclosed chamber, max colors and multi-extruder.
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.