H2S vs Neptune 3 Pro
Technical comparison · Fused filament fabrication (FFF/FDM)
H2S and Neptune 3 Pro are not direct competitors: very different prices (~5.2×). Neptune 3 Pro costs less (~€229) 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
|
Neptune 3 Pro
Elegoo
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Launch year | 2025 | 2022 |
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | ~1150–1250 € | ~199–259 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 49.2 × 51.4 × 62.6 cm | 47.5 × 44.5 × 51.5 cm |
| Weight (kg) | 30 kg | 8.1 kg |
| Work area (mm) | 340 × 320 mm | 225 × 225 mm |
| Z-axis height (mm) | 340 mm | 280 mm |
| Power (W) | 1800 W | 350 W |
| Voltage (V) | 220 V | 230 V |
| Maximum speed | 1000 mm/s | 180 mm/s |
| Declared precision | 50 μm | 0.1 mm |
| Category specs | ||
| XY print surface (mm) | 320 mm | 225 mm |
| Maximum Z height (mm) | 340 mm | 280 mm |
| Kinematics | corexy | cartesian |
| Max nozzle temperature (°C) | 350 °C | 260 °C |
| Max bed temperature (°C) | 120 °C | 100 °C |
| Max print speed (mm/s) | 1000 mm/s | 180 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 | False |
| Input shaper | True | False |
| Multicolor printing | True | False |
| Requires external accessory | True | — |
| 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 operating system is based on the open-source Marlin firmware, ensuring broad compatibility and stability for the user. The printer is supported by major slicing software on the market, such as Ultimaker Cura and PrusaSlicer, for which official preset profiles or easily configurable community profiles exist. Operational management is handled via a practical removable capacitive touchscreen, featuring a simple interface for manual control and monitoring. The machine operates entirely offline, reading G-code files via a MicroSD card or direct USB cable connection, without any dependency on cloud services or wireless networks. |
The differences that matter
- Price: H2S 1200 € vs Neptune 3 Pro 229 € — Neptune 3 Pro wins (+424%)
- Max print speed: H2S 1000 mm/s vs Neptune 3 Pro 180 mm/s — H2S wins (+456%)
- Work area: H2S 340×320 mm vs Neptune 3 Pro 225×225 mm — H2S wins (+115%)
- Closed chamber: H2S yes, Neptune 3 Pro no
- Max nozzle temperature: H2S 350 °C vs Neptune 3 Pro 260 °C — H2S wins (+35%)
Which one to choose
Choose H2S if…
you value max print speed, work area and closed chamber. «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.»
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.