Elegoo Neptune 4 Plus vs Snapmaker J1s IDEX 3D Printer

Technical comparison · Fused filament fabrication (FFF/FDM)

In brief

Neptune 4 Plus and J1s IDEX 3D Printer are not direct competitors: very different prices (~3.6×). Neptune 4 Plus costs less (~€350) 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
Elegoo Neptune 4 Plus Neptune 4 Plus Elegoo F2 · Intermediate
Identity
Launch year 2023 2023
Use tier F2 — Intermediate F2 — Intermediate
Price
Price (€) ~300–400 € ~1100–1400 €
Universal specs
Dimensions (W×D×H) (cm) 53.3 × 51.7 × 63.8 cm 53.9 × 40.1 × 46.4 cm
Weight (kg) 14.4 kg 27.8 kg
Work area (mm) 320 × 320 mm 300 × 200 mm
Z-axis height (mm) 385 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) 320 mm 200 mm
Build height Z (mm) 385 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 printer operates with Klipper firmware pre-installed on a 64-bit ARM processor, enabling advanced standard features like input shaping and pressure advance. The user interface is managed via a removable capacitive touchscreen and a dedicated web interface (Fluidd or Mainsail) for remote control and monitoring via Wi-Fi or LAN connection. For file preparation, the machine is compatible with major slicers on the market, including Elegoo Cura (bundled by the manufacturer), UltiMaker Cura, PrusaSlicer, and OrcaSlicer. 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 Plus 350 € vs J1s IDEX 3D Printer 1250 € — Neptune 4 Plus wins (+257%)
  • Build height Z: Neptune 4 Plus 385 mm vs J1s IDEX 3D Printer 200 mm — Neptune 4 Plus wins (+92%)
  • Work area: Neptune 4 Plus 320×320 mm vs J1s IDEX 3D Printer 300×200 mm — Neptune 4 Plus wins (+71%)
  • Enclosed chamber: J1s IDEX 3D Printer yes, Neptune 4 Plus no
  • Max colors: Neptune 4 Plus 1 vs J1s IDEX 3D Printer 2 — J1s IDEX 3D Printer wins (+100%)

Which one to choose

Choose Neptune 4 Plus if…

you value price, build height z and work area.

See the Neptune 4 Plus sheet →

Choose J1s IDEX 3D Printer if…

you value enclosed chamber, max colors and multi-extruder.

See the J1s IDEX 3D Printer sheet →

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.