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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≈ $1,100
Higher score
vs
QIDI Plus 4
QIDI · 2024Plus 4
8.9Score
5 advantages≈ $830
9.5Speed8.7
7.8Material versatility9.3
9.2Build volume7.5
9.3Ease of use8.6
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≈ $1,1009.5
QIDI Plus 4QIDI Plus 4≈ $8308.9
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/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
Nozzle materialsteel—
Swappable nozzle / hotendYesYes
Toolheads11
Nozzles11
Filament diameter1.75 mm1.75 mm
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 °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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