Artillery Sidewinder X4 Pro S1 vs Qidi Tech i-Fast

Technical comparison · Fused filament fabrication (FFF/FDM)

In brief

Sidewinder X4 Pro S1 and i-Fast are not direct competitors: very different prices (~7.3×). Sidewinder X4 Pro S1 costs less (~€295) and is the entry-level choice; i-Fast offers more capability at a higher price (~€2150). Judge them by budget, not head-to-head.

Parameter
Qidi Tech i-Fast i-Fast Qidi Tech F3 · Advanced
Identity
Launch year 2024 2021
Use tier F2 — Intermediate F3 — Advanced
Price
Price (€) ~270–320 € ~1800–2500 €
Universal specs
Dimensions (W×D×H) (cm) 45.3 × 43.1 × 51.2 cm 71 × 51 × 67 cm
Weight (kg) 33 kg
Work area (mm) 240 × 240 mm 330 × 250 mm
Z-axis height (mm) 260 mm 320 mm
Power (W) 300 W
Maximum speed 500 mm/s 150 mm/s
Category specs
Footprint X×Y (short side) (mm) 240 mm 250 mm
Build height Z (mm) 260 mm 320 mm
Kinematics Cartesian CoreXY
Max nozzle temperature (°C) 300 °C 300 °C
Max bed temperature (°C) 100 °C 100 °C
Max print speed (mm/s) 500 mm/s 150 mm/s
Enclosed chamber False True
Filament sensor True
Auto bed leveling Mesh
Standard nozzle diameter (mm) 0.4 mm
Multi-extruder False True
Native Klipper True False
Input shaper True False
Multicolor printing False True
Multicolor requires accessory False False
Max colors 2
Ecosystem
Cloud dependency No No
Software notes Native Klipper firmware with a 64-bit ARM 1.5 GHz processor. The printer is controlled via Wi-Fi from the Fluidd or Mainsail web interface, sending G-code from any slicer (Cura, PrusaSlicer, OrcaSlicer). No proprietary software required; USB/Type-C connection allows offline control. The user has full access to macros and advanced Klipper tuning, without hardware modifications. The machine comes with the proprietary Qidi Print software, a slicer based on proven open-source architectures, specifically optimized for the profiles of the technical materials supported by the printer. Users can still generate G-code using other widely adopted third-party slicers on the market, such as Ultimaker Cura, PrusaSlicer, or Simplify3D, after manual configuration of machine and extruder parameters. Although it lacks native cloud features or advanced remote connectivity for corporate fleet management, it supports direct file transfer via local Wi-Fi or USB drives, ensuring a secure offline workflow for intellectual property protection.

The differences that matter

  • Price: Sidewinder X4 Pro S1 295 € vs i-Fast 2150 € — Sidewinder X4 Pro S1 wins (+629%)
  • Max print speed: Sidewinder X4 Pro S1 500 mm/s vs i-Fast 150 mm/s — Sidewinder X4 Pro S1 wins (+233%)
  • Enclosed chamber: i-Fast yes, Sidewinder X4 Pro S1 no
  • Work area: Sidewinder X4 Pro S1 240×240 mm vs i-Fast 330×250 mm — i-Fast wins (+43%)
  • Multi-extruder: i-Fast yes, Sidewinder X4 Pro S1 no

Which one to choose

Choose Sidewinder X4 Pro S1 if…

you value price, max print speed and native klipper.

See the Sidewinder X4 Pro S1 sheet →

Choose i-Fast if…

you value enclosed chamber, work area and multi-extruder.

See the i-Fast sheet →

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.