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- H2S vs S1
Bambu Lab H2S vs FLSUN S1
What H2S does better (5) and where S1 wins (6) — every spec side by side.
Dimensions
Size comparison
H2SS1
| H2S | S1 | Difference | |
|---|---|---|---|
| Height | 626 mm | 1,030 mm | −404 mm |
| Width | 492 mm | 550 mm | −58 mm |
| Depth | 514 mm | 595 mm | −81 mm |
| Weight | 30 kg | 39 kg | −9 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is H2S better than S1?
- Build volume37 L vs 34.6 L+7%
- Delivered asFully assembled vs Partially assembled
- Weight30 kg vs 39 kg+30%
- Build width (X)340 mm vs 320 mm+6%
- Build depth (Y)340 mm vs 320 mm+6%
Why is S1 better than H2S?
- Engineering materials (PA, PC, CF)No · H2S: Yes
- Max volumetric flow65 mm³/s vs 110 mm³/s+69%
- Max print speed1,000 mm/s vs 1,200 mm/s+20%
- Number of supported materials4 vs 102.5×
- Build height (Z)320 mm vs 430 mm+34%
- Screen size5″ vs 7″+40%
Specifications
Side by side
| General | ||
| Technology | FDM / FFF (filament) | FDM / FFF (filament) |
| Motion system | CoreXY / XY-head | Delta |
| Delivered as | Fully assembled | Partially assembled |
| All-metal frame | Yes | Yes |
| Build volume | ||
| Build width (X) | 340 mm | 320 mm |
| Build depth (Y) | 340 mm | 320 mm |
| Build height (Z) | 320 mm | 430 mm |
| Build volume | 37 L | 34.6 L |
| Speed | ||
| Max print speed | 1,000 mm/s | 1,200 mm/s |
| Max acceleration | 20,000 mm/s² | — |
| Max volumetric flow | 65 mm³/s | 110 mm³/s |
| Print quality | ||
| Finest layer height | — | 0.1 mm |
| Thickest layer height | — | 0.35 mm |
| Vibration compensation (input shaping) | — | Yes |
| Automatic bed levelling | — | Yes |
| Extruder & hotend | ||
| Max nozzle temperature | 350 °C | 350 °C |
| Direct-drive extruder | Yes | Yes |
| Default nozzle | 0.4 mm | 0.4 mm |
| Nozzle material | steel | hardened steel |
| Swappable nozzle / hotend | Yes | Yes |
| Toolheads | 1 | 1 |
| Nozzles | 1 | 1 |
| Filament diameter | 1.75 mm | 1.75 mm |
| Supported materials | ABS, PETG, PLA, TPU | ABS, ASA, Carbon, PA, PC, PETG, PLA, PVA, TPU, Wood |
| Number of supported materials | 4 | 10 |
| Engineering materials (PA, PC, CF) | No | Yes |
| Multi-colour | ||
| Multi-colour printing | Yes | — |
| Max colours / materials | 4 | — |
| Multi-colour system | AMS | — |
| Print bed | ||
| Heated bed | Yes | Yes |
| Max bed temperature | 120 °C | 120 °C |
| Flexible magnetic build plate | — | Yes |
| Enclosure | ||
| Enclosed build chamber | Yes | Yes |
| Actively heated chamber | Yes | — |
| Max chamber temperature | 65 °C | — |
| Air filter (carbon / HEPA) | Yes | Yes |
| Chamber light | Yes | Yes |
| Door sensor | Yes | — |
| Connectivity & control | ||
| Connectivity | Wi-Fi, USB | Wi-Fi, USB |
| Wi-Fi | Yes | Yes |
| Ethernet | No | — |
| USB | Yes | Yes |
| SD card | No | — |
| Bluetooth | No | — |
| App control | Yes | — |
| Screen size | 5″ | 7″ |
| Touchscreen | Yes | Yes |
| Features | ||
| Built-in camera | Yes | Yes |
| Camera resolution | 2.1 MP | 2.1 MP |
| Filament runout sensor | — | Yes |
| Power-loss recovery | Yes | Yes |
| Silent stepper drivers | — | Yes |
| Built-in filament drying | — | Yes |
| Laser engraving module | Yes | — |
| Size & power | ||
| Width | 492 mm | 550 mm |
| Depth | 514 mm | 595 mm |
| Height | 626 mm | 1,030 mm |
| Weight | 30 kg | 39 kg |
| Rated power | 2,050 W | 1,300 W |
