Bambu Lab X1 Carbon Combo vs Elegoo Mars 4 Ultra
Head-to-head 3D printer comparison, 2026
Comparing FDM to resin? The Bambu Lab X1 Carbon Combo ($1199, FDM) and Elegoo Mars 4 Ultra ($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 Bambu Lab X1 Carbon Combo takes the crown with 8.8/10 vs 7.8/10. It pulls ahead in Print Quality, Speed, Reliability. That said, the Elegoo Mars 4 Ultra saves you $1000 and wins on Value.
Score Breakdown
Specifications
| Spec | Bambu Lab X1 Carbon Combo | Elegoo Mars 4 Ultra |
|---|---|---|
| Price | $1199 | $199 |
| Type | FDM | RESIN |
| Build Volume | 256 x 256 x 256 mm | 153 x 77 x 165 mm |
| Print Speed | 500 mm/s | 100 mm/s |
| Min Resolution | 0.05 mm | 0.01 mm |
| Weight | 15.8 kg | 6.8 kg |
| Overall Score | 8.8/10 | 7.8/10 |
Pros & Cons
Bambu Lab X1 Carbon Combo
+Lidar + auto-calibration eliminates first-layer anxiety on high-value prints
+AMS in the box: no separate multi-material module purchase needed
+HEPA filtration makes ABS/ASA printing genuinely office-safe
+Expandable to 16 colors by daisy-chaining up to 4 AMS units
+Bambu's reliability track record is the strongest in the consumer market
−$1,199 is a premium ask; the P1S Combo at $699 covers 90% of use cases for less
−Lidar calibration adds setup time on every new filament type
−AMS still purges filament on color transitions; purge blocks reduce waste but don't eliminate it
−Bambu ecosystem lock-in: proprietary slicing workflow works best with Bambu Studio
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
Who Should Buy Which?
Choose the Bambu Lab X1 Carbon Combo if you want:
- A great printer for engineering
- A great printer for multi-color
- A great printer for speed
- A great printer for professional
- A great printer for enclosed
- Enclosed CoreXY
- AMS multi-material (4 colors, expandable to 16 with 3 additional AMS units)
- Lidar sensor for first-layer and flow calibration
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
Frequently Asked Questions
Is the Bambu Lab X1 Carbon Combo better than the Elegoo Mars 4 Ultra?
By the numbers, the Bambu Lab X1 Carbon Combo scores higher (8.8/10). But "better" depends on your use case, the Elegoo Mars 4 Ultra may be the smarter buy if you need miniatures.
Which is better for beginners, Bambu Lab X1 Carbon Combo or Elegoo Mars 4 Ultra?
Both score 7/10 for beginners. Go with the Elegoo Mars 4 Ultra to save $1000.
Is the Bambu Lab X1 Carbon Combo worth $1000 more than the Elegoo Mars 4 Ultra?
The Bambu Lab X1 Carbon Combo scores higher overall (8.8/10 vs 7.8/10). The extra $1000 gets you lidar + auto-calibration eliminates first-layer anxiety on high-value prints.
What's the main difference between Bambu Lab X1 Carbon Combo and Elegoo Mars 4 Ultra?
Technology: the Bambu Lab X1 Carbon Combo is FDM (filament) and the Elegoo Mars 4 Ultra is RESIN (resin). FDM prints bigger functional parts; resin delivers finer surface detail.