Elegoo Mars 4 Ultra vs Phrozen Sonic Mini 4K
Head-to-head 3D printer comparison, 2026
The Elegoo Mars 4 Ultra and Phrozen Sonic Mini 4K are both RESIN 3D printers competing in the same price bracket, $199 vs $199. Both are scored across value, beginner-friendliness, quality, speed, and reliability. Here's the full breakdown.
Our Verdict
The Elegoo Mars 4 Ultra takes the crown with 7.8/10 vs 7/10. It pulls ahead in Value, Beginner Friendliness, Speed.
Score Breakdown
Specifications
| Spec | Elegoo Mars 4 Ultra | Phrozen Sonic Mini 4K |
|---|---|---|
| Price | $199 | $199 |
| Type | RESIN | RESIN |
| Build Volume | 153 x 77 x 165 mm | 134 x 75 x 130 mm |
| Print Speed | 100 mm/s | 80 mm/s |
| Min Resolution | 0.01 mm | 0.01 mm |
| Weight | 6.8 kg | 5 kg |
| Overall Score | 7.8/10 | 7/10 |
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
Phrozen Sonic Mini 4K
+35-micron XY resolution still produces detailed minis despite the lower resolution count
+Phrozen's build quality and reliability track record is among the best in the category
+Compact footprint fits into tight shelf spaces
−4K resolution in a world of 8K and 12K is a real gap: fine details are softer
−134x75mm build plate is one of the smallest on the list
−No WiFi: USB-only file management
−80mm/hr speed is the same as entry-level machines that cost half as much
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 Phrozen Sonic Mini 4K if you want:
- A great printer for miniatures
- A great printer for detail
- A great printer for resin
- 5.5" 4K mono LCD
- 35-micron XY resolution
- ParaLED 2.0
Frequently Asked Questions
Is the Elegoo Mars 4 Ultra better than the Phrozen Sonic Mini 4K?
By the numbers, the Elegoo Mars 4 Ultra scores higher (7.8/10). But "better" depends on your use case, the Phrozen Sonic Mini 4K may be the smarter buy if you need miniatures.
Which is better for beginners, Elegoo Mars 4 Ultra or Phrozen Sonic Mini 4K?
The Elegoo Mars 4 Ultra is more beginner-friendly (7/10 vs 6/10) with easier setup and a gentler learning curve.
Which is the better value, Elegoo Mars 4 Ultra or Phrozen Sonic Mini 4K?
Same price ($199), so it comes down to features. The Elegoo Mars 4 Ultra edges ahead on value score.
What's the main difference between Elegoo Mars 4 Ultra and Phrozen Sonic Mini 4K?
Build volume (153x77x165mm vs 134x75x130mm) and print speed (100 vs 80 mm/s). The Elegoo Mars 4 Ultra is best for miniatures; the Phrozen Sonic Mini 4K targets miniatures.