Prusa MK4S vs QIDI X-Max 3
Head-to-head 3D printer comparison — 2026
The Prusa MK4S and QIDI X-Max 3 are both FDM 3D printers competing in the same price bracket — $799 vs $799. We scored both across value, beginner-friendliness, quality, speed, and reliability. Here's the full breakdown.
Our Verdict
The QIDI X-Max 3 takes the crown with 8/10 vs 7.8/10. It pulls ahead in Value, Speed. The Prusa MK4S still puts up a fight in Beginner Friendliness and Reliability.
Score Breakdown
Specifications
| Spec | Prusa MK4S | QIDI X-Max 3 |
|---|---|---|
| Price | $799 | $799 |
| Type | FDM | FDM |
| Build Volume | 250 x 210 x 220 mm | 325 x 325 x 315 mm |
| Print Speed | 200 mm/s | 600 mm/s |
| Min Resolution | 0.05 mm | 0.05 mm |
| Weight | 7 kg | 25 kg |
| Overall Score | 7.8/10 | 8/10 |
Pros & Cons
Prusa MK4S
+Legendary reliability
+Fully open source
+PrusaSlicer is excellent
+Best customer support in the industry
−Expensive for the speed
−Slower than CoreXY competition
−Open frame
−Showing its age vs Bambu
QIDI X-Max 3
+Large enclosed build volume
+Active chamber heating
+Handles all engineering materials
+Independent Z motors
−Heavy
−Expensive
−QIDI ecosystem
−Requires dedicated space
Who Should Buy Which?
Choose the Prusa MK4S if you want:
- A great printer for reliability
- A great printer for open-source
- Open source
- PrusaSlicer
- Nextruder
Choose the QIDI X-Max 3 if you want:
- A great printer for large-prints
- A great printer for engineering
- A great printer for professional
- Enclosed
- Large CoreXY
- Chamber heating (60C)
Frequently Asked Questions
Is the Prusa MK4S better than the QIDI X-Max 3?
By the numbers, the QIDI X-Max 3 scores higher (8/10). But "better" depends on your use case — the Prusa MK4S may be the smarter buy if you need reliability.
Which is better for beginners, Prusa MK4S or QIDI X-Max 3?
The Prusa MK4S is more beginner-friendly (8/10 vs 6/10) with easier setup and a gentler learning curve.
Which is the better value, Prusa MK4S or QIDI X-Max 3?
Same price ($799), so it comes down to features. The QIDI X-Max 3 edges ahead on value score.
What's the main difference between Prusa MK4S and QIDI X-Max 3?
Build volume (250x210x220mm vs 325x325x315mm) and print speed (200 vs 600 mm/s). The Prusa MK4S is best for reliability; the QIDI X-Max 3 targets large-prints.