Longer Orange 4K vs QIDI X-CF Pro
Head-to-head 3D printer comparison, 2026
Comparing FDM to resin? The Longer Orange 4K ($129, RESIN) and QIDI X-CF Pro ($599, FDM) use fundamentally different technologies. FDM melts filament layer by layer; resin cures liquid with UV light. Here's how they stack up.
Our Verdict
The QIDI X-CF Pro takes the crown with 6.8/10 vs 6.4/10. It pulls ahead in Print Quality, Reliability. That said, the Longer Orange 4K saves you $470 and wins on Value.
Direct answer
QIDI X-CF Pro is the better pick for most buyers.
Choose QIDI X-CF Pro if you want the stronger overall score, better fit for engineering and enclosed, and the safer recommendation. Choose Longer Orange 4K only if its specific strengths matter more to you than the overall result.
Winner by buyer type
Best overall
QIDI X-CF Pro
Best value
Longer Orange 4K
Best build volume
QIDI X-CF Pro
Score Breakdown
Specifications
| Spec | Longer Orange 4K | QIDI X-CF Pro |
|---|---|---|
| Price | $129 | $599 |
| Type | RESIN | FDM |
| Build Volume | 118 x 66 x 190 mm | 300 x 250 x 300 mm |
| Print Speed | 80 mm/s | 100 mm/s |
| Min Resolution | 0.01 mm | 0.05 mm |
| Weight | 4.5 kg | 21.5 kg |
| Overall Score | 6.4/10 | 6.8/10 |
Pros & Cons
Longer Orange 4K
+$129 is the absolute floor for resin printing
+WiFi at this price is genuinely surprising
+4K resolution is enough to see if resin is your thing
−118x66mm build plate: one mini at a time, if they're small
−4K resolution is dated next to 9K and 12K competitors
−Long-term reliability is unknown; smaller community means fewer fixes documented online
QIDI X-CF Pro
+One of the few sub-$600 printers with a genuine 60°C heated enclosure for PA-CF and PPS-CF
+Hardened steel nozzle ships standard — no upgrade needed for carbon fiber out of the box
+HEPA + active carbon filtration — safe for indoor use with engineering filaments
+Linear rails on all axes mean less positional drift on long industrial prints
+Proven track record in light manufacturing since 2021
−60-100mm/s print speed is 6x slower than modern CoreXY machines — long print times
−2021 vintage hardware; newer QIDI models (X-Plus 4, Tech Max) offer more for similar money
−Dual extruder adds mechanical complexity without multi-color usefulness for most users
−21.5kg — not portable, bench-only
−Slicer integration (Simplify3D profiles) trails modern Bambu/Creality ecosystems
Who Should Buy Which?
Choose the Longer Orange 4K if you want:
- A great printer for budget
- A great printer for resin
- 5.5" 4K mono LCD
- WiFi
- USB
Choose the QIDI X-CF Pro if you want:
- A great printer for engineering
- A great printer for enclosed
- A great printer for professional
- A great printer for carbon-fiber
- Dual Z-axis for precise layer alignment
- High-temp enclosure (up to 60°C chamber)
- Hardened steel nozzle (CF-ready from factory)
Frequently Asked Questions
Is the Longer Orange 4K better than the QIDI X-CF Pro?
By the numbers, the QIDI X-CF Pro scores higher (6.8/10). But "better" depends on your use case, the Longer Orange 4K may be the smarter buy if you need budget.
Which is better for beginners, Longer Orange 4K or QIDI X-CF Pro?
Both score 5/10 for beginners. Go with the Longer Orange 4K to save $470.
Is the QIDI X-CF Pro worth $470 more than the Longer Orange 4K?
The QIDI X-CF Pro scores higher overall (6.8/10 vs 6.4/10). The extra $470 gets you one of the few sub-$600 printers with a genuine 60°c heated enclosure for pa-cf and pps-cf.
What's the main difference between Longer Orange 4K and QIDI X-CF Pro?
Technology: the Longer Orange 4K is RESIN (filament) and the QIDI X-CF Pro is FDM (resin). FDM prints bigger functional parts; resin delivers finer surface detail.