H2S vs Neptune 4 Max
Technical comparison · Fused filament fabrication (FFF/FDM)
H2S and Neptune 4 Max are two fused filament fabrication (fff/fdm) in a similar class. Choose H2S if max print speed matters more; choose Neptune 4 Max if price matters more. On the category's overall technical index, H2S scores 62/100 against 40/100 for Neptune 4 Max.
| Parameter |
H2S
Bambu Lab
F2 · Intermediate
|
Neptune 4 Max
Elegoo
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Launch year | 2025 | 2023 |
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | ~1150–1250 € | 549 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 49.2 × 51.4 × 62.6 cm | 65.8 × 63.2 × 74 cm |
| Weight (kg) | 30 kg | 18.1 kg |
| Work area (mm) | 340 × 320 mm | 420 × 420 mm |
| Z-axis height (mm) | 340 mm | 480 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 | 420 mm |
| Maximum Z height (mm) | 340 mm | 480 mm |
| Kinematics | corexy | cartesian |
| Max nozzle temperature (°C) | 350 °C | 300 °C |
| Max bed temperature (°C) | 120 °C | 85 °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 system relies on an open ecosystem thanks to the motherboard with pre-installed Klipper. Users can manage the machine both through the 4.3-inch capacitive touchscreen interface and via local network using the integrated web interface (Fluidd). Elegoo provides its own customized version of the Cura slicer, but the printer remains fully compatible with most third-party slicers such as PrusaSlicer, OrcaSlicer, and Simplify3D. Native support for Wi-Fi and LAN connectivity facilitates sending and monitoring G-code files without the need for physical media. |
The differences that matter
- Price: H2S 1200 € vs Neptune 4 Max 549 € — Neptune 4 Max wins (+119%)
- Max print speed: H2S 1000 mm/s vs Neptune 4 Max 500 mm/s — H2S wins (+100%)
- Work area: H2S 340×320 mm vs Neptune 4 Max 420×420 mm — Neptune 4 Max wins (+62%)
- Closed chamber: H2S yes, Neptune 4 Max no
- Maximum Z height: H2S 340 mm vs Neptune 4 Max 480 mm — Neptune 4 Max wins (+41%)
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 Neptune 4 Max if…
you value price, work area and maximum z height. «The Z height determines how tall a part the machine can produce in one print. Vertical objects such as vases, load-bearing structures, or casting patterns require a high Z travel. A lower value does not affect quality but forces the user to split or reorient the model. Z height should be considered alongside the XY surface to assess total usable build volume.»
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