H2S vs Elegoo Neptune 4 Plus
Technical comparison · Fused filament fabrication (FFF/FDM)
H2S and Elegoo Neptune 4 Plus are not direct competitors: very different prices (~3.4×). Elegoo Neptune 4 Plus costs less (~€350) and is the entry-level choice; H2S offers more capability at a higher price (~€1200). Judge them by budget, not head-to-head.
| Parameter |
H2S
Bambu Lab
F2 · Intermediate
|
Elegoo Neptune 4 Plus
Elegoo
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Launch year | 2025 | 2023 |
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | ~1150–1250 € | ~300–400 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 49.2 × 51.4 × 62.6 cm | 53.3 × 51.7 × 63.8 cm |
| Weight (kg) | 30 kg | 14.4 kg |
| Work area (mm) | 340 × 320 mm | 320 × 320 mm |
| Z-axis height (mm) | 340 mm | 385 mm |
| Power (W) | 1800 W | — |
| Voltage (V) | 220 V | — |
| Maximum speed | 1000 mm/s | 500 mm/s |
| Declared precision | 50 μm | 0.1 mm |
| Category specs | ||
| XY print surface (mm) | 320 mm | 320 mm |
| Maximum Z height (mm) | 340 mm | 385 mm |
| Kinematics | corexy | cartesian |
| Max nozzle temperature (°C) | 350 °C | 300 °C |
| Max bed temperature (°C) | 120 °C | 110 °C |
| Max print speed (mm/s) | 1000 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 | — | 1 |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | The H2S uses Bambu Studio as its primary slicer, with full support for proprietary features including automatic calibration, AI monitoring, and AMS management. It also accepts G-code exported from OrcaSlicer, PrusaSlicer, and Cura, though some advanced functions may not be available with third-party slicers. Laser and cutting functions are managed exclusively through Bambu Suite. Developer Mode is available, exposing MQTT access for custom integrations. | 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. |
The differences that matter
- Price: H2S 1200 € vs Elegoo Neptune 4 Plus 350 € — Elegoo Neptune 4 Plus wins (+243%)
- Max print speed: H2S 1000 mm/s vs Elegoo Neptune 4 Plus 500 mm/s — H2S wins (+100%)
- Closed chamber: H2S yes, Elegoo Neptune 4 Plus no
- Native Klipper: Elegoo Neptune 4 Plus yes, H2S no
- Multicolor printing: H2S yes, Elegoo Neptune 4 Plus no
Which one to choose
Choose H2S if…
you value max print speed, closed chamber and multicolor printing. «The rated maximum speed indicates the theoretical hardware limit, not the everyday working speed. Faster machines reduce print times on simple geometries, but real-world speed depends on material, geometry, required surface finish, and slicer settings. Values above 200–300 mm/s are meaningful only on machines with CoreXY kinematics, active input shaping, and a stiffened mechanical frame.»
Choose Elegoo Neptune 4 Plus if…
you value price, native klipper and maximum z height. «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.