Elegoo Mars 4 Ultra vs Kingroon KP3S Pro V2
Head-to-head 3D printer comparison, 2026
Comparing FDM to resin? The Elegoo Mars 4 Ultra ($199, RESIN) and Kingroon KP3S Pro V2 ($159, 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 Elegoo Mars 4 Ultra takes the crown with 7.8/10 vs 7.2/10. It pulls ahead in Print Quality, Speed, Reliability. That said, the Kingroon KP3S Pro V2 saves you $40 and wins on Value.
Score Breakdown
Specifications
| Spec | Elegoo Mars 4 Ultra | Kingroon KP3S Pro V2 |
|---|---|---|
| Price | $199 | $159 |
| Type | RESIN | FDM |
| Build Volume | 153 x 77 x 165 mm | 200 x 200 x 200 mm |
| Print Speed | 100 mm/s | 250 mm/s |
| Min Resolution | 0.01 mm | 0.05 mm |
| Weight | 6.8 kg | 6.5 kg |
| Overall Score | 7.8/10 | 7.2/10 |
Pros & Cons
Elegoo Mars 4 Ultra
+9K resolution is a meaningful jump from 7K: finer surface texture, sharper edges on small parts
+Tilt release means FEP films last longer; $50 less per year in consumables is real money
+Built-in air purifier takes the edge off the smell without requiring an external solution
+WiFi monitoring means you can start a print and check it from another room
−153x77mm plate is tight for anything larger than small character models
−Still needs a wash and cure station: budget $50-80 extra
−Resin workflow is messier and slower to start than FDM
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
Who Should Buy Which?
Choose the Elegoo Mars 4 Ultra if you want:
- A great printer for miniatures
- A great printer for resin
- A great printer for budget
- 9K mono LCD
- Tilt release
- WiFi
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
Frequently Asked Questions
Is the Elegoo Mars 4 Ultra better than the Kingroon KP3S Pro V2?
By the numbers, the Elegoo Mars 4 Ultra scores higher (7.8/10). But "better" depends on your use case, the Kingroon KP3S Pro V2 may be the smarter buy if you need budget.
Which is better for beginners, Elegoo Mars 4 Ultra or Kingroon KP3S Pro V2?
Both score 7/10 for beginners. Go with the Kingroon KP3S Pro V2 to save $40.
Is the Elegoo Mars 4 Ultra worth $40 more than the Kingroon KP3S Pro V2?
The Elegoo Mars 4 Ultra scores higher overall (7.8/10 vs 7.2/10). The extra $40 gets you 9k resolution is a meaningful jump from 7k: finer surface texture, sharper edges on small parts.
What's the main difference between Elegoo Mars 4 Ultra and Kingroon KP3S Pro V2?
Technology: the Elegoo Mars 4 Ultra is RESIN (filament) and the Kingroon KP3S Pro V2 is FDM (resin). FDM prints bigger functional parts; resin delivers finer surface detail.