A1 vs Neptune 4 Pro

Technical comparison · Fused filament fabrication (FFF/FDM)

In brief

A1 and Neptune 4 Pro are two fused filament fabrication (fff/fdm) in a similar class. Choose A1 if maximum colors matters more; choose Neptune 4 Pro if price matters more.

Parameter
Bambu Lab A1 A1 Bambu Lab F2 · Intermediate
Elegoo Neptune 4 Pro Neptune 4 Pro Elegoo F2 · Intermediate
Identity
Launch year 2023 2023
Use tier F2 — Intermediate F2 — Intermediate
Price
Price (€) 429 € 299 €
Universal specs
Dimensions (W×D×H) (cm) 38.5 × 41 × 43 cm 47.5 × 44.5 × 51.5 cm
Weight (kg) 8.3 kg 8.9 kg
Work area (mm) 256 × 256 mm 225 × 225 mm
Z-axis height (mm) 256 mm 265 mm
Power (W) 1300 W
Voltage (V) 220 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 cartesian 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 False 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 A1 works natively with Bambu Studio, Bambu Lab's proprietary slicer available for Windows and macOS, which handles slicing, automatic calibrations, and remote monitoring via the Bambu Handy app. Third-party slicers — including PrusaSlicer, SuperSlicer, and Ultimaker Cura — are supported via standard G-code export, but advanced features such as vibration compensation and active flow control are only available within the Bambu ecosystem. 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

  • Maximum colors: A1 4 vs Neptune 4 Pro 1 — A1 wins (+300%)
  • Price: A1 429 € vs Neptune 4 Pro 299 € — Neptune 4 Pro wins (+43%)
  • Work area: A1 256×256 mm vs Neptune 4 Pro 225×225 mm — A1 wins (+29%)
  • Native Klipper: Neptune 4 Pro yes, A1 no
  • Multicolor printing: A1 yes, Neptune 4 Pro no

Which one to choose

Choose A1 if…

you value maximum colors, work area 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.»

See the A1 sheet →

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.»

See the Neptune 4 Pro 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.