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  3. H2S vs Plus 4

Bambu Lab H2S vs QIDI Plus 4

What H2S does better (5) and where Plus 4 wins (5) — every spec side by side.

Bambu Lab H2S
Bambu Lab · 2025H2S
9.5Score
5 advantages≈ $1,200
Higher score
vs
QIDI Plus 4
QIDI · 2024Plus 4
8.8Score
5 advantages≈ $860
9.5Speed6.4
7.8Material versatility9.2
9.2Build volume7.8
9.3Ease of use8.7
Dimensions

Size comparison

H2SPlus 4
492 × 626514505 × 550487
H2SPlus 4Difference
Height626 mm550 mm+76 mm
Width492 mm505 mm−13 mm
Depth514 mm487 mm+27 mm
Weight30 kg27 kg+3 kg

Drawn to the same scale from the official dimensions (front and side).

Why is H2S better than Plus 4?

  1. Build volume37 L vs 26 L+42%
  2. Max print speed1,000 mm/s vs 600 mm/s+67%
  3. Build height (Z)320 mm vs 280 mm+14%
  4. Build width (X)340 mm vs 305 mm+11%
  5. Build depth (Y)340 mm vs 305 mm+11%

Why is Plus 4 better than H2S?

  1. Engineering materials (PA, PC, CF)No · H2S: Yes
  2. Max nozzle temperature350 °C vs 370 °C+6%
  3. Number of supported materials4 vs 82×
  4. EthernetNo · H2S: Yes
  5. Weight30 kg vs 27 kg+11%
Specifications

Side by side

Bambu Lab H2SBambu Lab H2S≈ $1,2009.5
QIDI Plus 4QIDI Plus 4≈ $8608.8
General
TechnologyFDM / FFF (filament)FDM / FFF (filament)
Motion systemCoreXY / XY-headCoreXY / XY-head
Delivered asFully assembledFully assembled
All-metal frameYes—
Klipper firmware—Yes
Build volume
Build width (X)340 mm305 mm
Build depth (Y)340 mm305 mm
Build height (Z)320 mm280 mm
Build volume37 L26 L
Speed
Max print speed1,000 mm/s600 mm/s
Max acceleration20,000 mm/s²20,000 mm/s²
Max volumetric flow65 mm³/s—
Print quality
Finest layer height—0.05 mm
Thickest layer height—0.4 mm
Vibration compensation (input shaping)—Yes
Automatic bed levelling—Yes
Extruder & hotend
Max nozzle temperature350 °C370 °C
Direct-drive extruderYesYes
Default nozzle0.4 mm0.4 mm
Supported nozzle sizes (mm)—0.4, 0.8
Nozzle materialsteel—
Swappable nozzle / hotendYesYes
Toolheads11
Nozzles11
Filament diameter1.75 mm1.75 mm
Filament cutter—Yes
Supported materialsABS, PETG, PLA, TPUABS, ASA, Carbon, PA, PC, PETG, PLA, TPU
Number of supported materials48
Engineering materials (PA, PC, CF)NoYes
Multi-colour
Multi-colour printingYes—
Max colours / materials4—
Multi-colour systemAMS—
Print bed
Heated bedYesYes
Max bed temperature120 °C120 °C
Flexible magnetic build plate—Yes
Enclosure
Enclosed build chamberYesYes
Actively heated chamberYesYes
Max chamber temperature65 °C65 °C
Air filter (carbon / HEPA)YesYes
Chamber lightYesYes
Door sensorYes—
Connectivity & control
ConnectivityWi-Fi, USBWi-Fi, Ethernet, USB
Wi-FiYesYes
EthernetNoYes
USBYesYes
SD cardNo—
BluetoothNo—
App controlYes—
Screen size5″5″
TouchscreenYesYes
Features
Built-in cameraYesYes
Camera resolution2.1 MP2.1 MP
Filament runout sensor—Yes
Power-loss recoveryYesYes
Silent stepper drivers—Yes
Laser engraving moduleYes—
Size & power
Width492 mm505 mm
Depth514 mm487 mm
Height626 mm550 mm
Weight30 kg27 kg
Rated power2,050 W450 W
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