Bambu Lab H2S vs Qidi Tech Max4
Technical comparison · Fused filament fabrication (FFF/FDM)
The H2S and the Max4 cost nearly the same, but they don't aim at the same use: the H2S favors print speed, the Max4 a bigger bed and open firmware. The choice comes down to what the workshop actually needs: small parts printed fast, or large parts with direct firmware control.
| Parameter | ||
|---|---|---|
| Identity | ||
| Launch year | 2025 | 2026 |
| Use tier | F2 — Intermediate | F4 — Semi-professional |
| Price | ||
| Price (€) | ~1150–1250 € | 1049 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 49.2 × 51.4 × 62.6 cm | 55.8 × 57.8 × 61.2 cm |
| Weight (kg) | 30 kg | 40 kg |
| Work area (mm) | 340 × 320 mm | 390 × 390 mm |
| Z-axis height (mm) | 340 mm | 340 mm |
| Power (W) | 1800 W | — |
| Voltage (V) | 220 V | — |
| Maximum speed | 1000 mm/s | 800 mm/s |
| Declared precision | 50 μm | — |
| Category specs | ||
| Footprint X×Y (short side) (mm) | 320 mm | 390 mm |
| Build height Z (mm) | 340 mm | 340 mm |
| Kinematics | CoreXY | CoreXY |
| Max nozzle temperature (°C) | 350 °C | 370 °C |
| Max bed temperature (°C) | 120 °C | 120 °C |
| Max print speed (mm/s) | 1000 mm/s | 800 mm/s |
| Enclosed chamber | Yes | Yes |
| Filament sensor | Yes | Yes |
| Auto bed leveling | Mesh | Mesh |
| Standard nozzle diameter (mm) | 0.4 mm | — |
| Multi-extruder | No | No |
| Native Klipper | No | Yes |
| Input shaper | Yes | Yes |
| Multicolor printing | Yes | Yes |
| Multicolor requires accessory | Yes | Yes |
| Max colors | — | 16 |
| 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 machine natively runs on Klipper firmware, offering comprehensive control and high computational speed for advanced features like input shaping. The user interface is managed locally via a large 5-inch touchscreen. Remote monitoring is facilitated by the integrated 1080p AI webcam with error detection for extrusion failures. For slicing, the manufacturer provides QIDI Studio, a software derived from PrusaSlicer/Bambu Studio, specifically optimized for high-temperature material profiles. Users can also access the Fluidd web interface for advanced control over the printer parameters and print offline via a USB drive or through the local network. |
The differences that matter
- Bed size: H2S 340×320 mm, Max4 390×390 mm → the Max4 fits larger single parts.
- Stated speed: H2S 1000 mm/s, Max4 800 mm/s → the H2S finishes small parts sooner.
- Firmware: only the Max4 has native Klipper → direct access to profiles and calibration.
- Price: H2S about €1200, Max4 €1049 → the Max4 costs about €150 less despite the bigger bed.
Which one to choose
Choose H2S if…
You print small or medium parts and want the shortest print time: the stated speed reaches 1000 mm/s against the Max4's 800 mm/s. The bed stays smaller (340×320 mm versus 390×390 mm) and the firmware isn't as customizable as on the Max4.
Choose Max4 if…
You print large parts (390×390 mm bed versus 340×320 mm) or want to get into the firmware: the Max4 runs native Klipper and costs about €150 less than the H2S, in exchange for a lower stated speed (800 mm/s versus 1000 mm/s).
Where to buy
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Filaments for these printers
The most chosen spools among the materials both printers can print according to their specifications.
- ELEGOO PLA PLA1.75 mm1 kg Check the price on Amazon →
- Bambu Lab PLA PLA1.75 mm1 kg Check the price on Amazon →
- SUNLU PETG (Polyethylene Terephthalate Glycol) PETG (Polyethylene Terephthalate Glycol)1.75 mm1 kg Check the price on Amazon →
- SUNLU PLA PLA1.75 mm1 kg Check the price on Amazon →
- OVERTURE PETG (Polyethylene Terephthalate Glycol) PETG (Polyethylene Terephthalate Glycol)High speed1.75 mm1 kg Check the price on Amazon →
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