Kingroon KP3S Pro V2 vs Longer Orange 4K V2
Head-to-head 3D printer comparison, 2026
Comparing FDM to resin? The Kingroon KP3S Pro V2 ($159, FDM) and Longer Orange 4K V2 ($199, RESIN) 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 Kingroon KP3S Pro V2 takes the crown with 7.2/10 vs 6/10. It pulls ahead in Value, Beginner Friendliness, Speed, Reliability.
Score Breakdown
Specifications
| Spec | Kingroon KP3S Pro V2 | Longer Orange 4K V2 |
|---|---|---|
| Price | $159 | $199 |
| Type | FDM | RESIN |
| Build Volume | 200 x 200 x 200 mm | 120 x 68 x 195 mm |
| Print Speed | 250 mm/s | 90 mm/s |
| Min Resolution | 0.05 mm | 0.01 mm |
| Weight | 6.5 kg | 4.8 kg |
| Overall Score | 7.2/10 | 6/10 |
Pros & Cons
Kingroon KP3S Pro V2
+Linear rails at $159 is genuinely unusual: this feature normally costs $300+
+Direct drive handles TPU without the feeding nightmares of a Bowden setup
+Compact footprint fits on a shelf without dedicating a full desk to it
−200mm cube limits what you can print in one go
−Kingroon's community is small: if something breaks, you're mostly solving it alone
−Firmware is functional but hasn't had meaningful updates in a while
Longer Orange 4K V2
+Better light uniformity than the V1 means fewer dark patches at plate edges
+WiFi at $199 is a feature the original didn't have
+Compact enough to store in a drawer when not printing
−4K resolution is dated: the Elegoo Mars 4 offers 7K for $149 with better community support
−120x68mm plate is small even by entry-level standards
−Longer's support community is thin: problems are harder to solve than on Elegoo hardware
Who Should Buy Which?
Choose the Kingroon KP3S Pro V2 if you want:
- A great printer for budget
- A great printer for compact
- Linear rails
- Direct drive
- Auto bed leveling
Choose the Longer Orange 4K V2 if you want:
- A great printer for budget
- A great printer for resin
- A great printer for miniatures
- 5.5" 4K mono LCD
- WiFi
- USB
Frequently Asked Questions
Is the Kingroon KP3S Pro V2 better than the Longer Orange 4K V2?
By the numbers, the Kingroon KP3S Pro V2 scores higher (7.2/10). But "better" depends on your use case, the Longer Orange 4K V2 may be the smarter buy if you need budget.
Which is better for beginners, Kingroon KP3S Pro V2 or Longer Orange 4K V2?
The Kingroon KP3S Pro V2 is more beginner-friendly (7/10 vs 5/10) with easier setup and a gentler learning curve.
Is the Longer Orange 4K V2 worth $40 more than the Kingroon KP3S Pro V2?
The Kingroon KP3S Pro V2 actually scores higher (7.2/10) despite costing $40 less. The Longer Orange 4K V2 only makes sense if you specifically need budget.
What's the main difference between Kingroon KP3S Pro V2 and Longer Orange 4K V2?
Technology: the Kingroon KP3S Pro V2 is FDM (filament) and the Longer Orange 4K V2 is RESIN (resin). FDM prints bigger functional parts; resin delivers finer surface detail.