Bambu Lab P1S vs Elegoo Neptune 4 Plus
Head-to-head 3D printer comparison, 2026
The Bambu Lab P1S and Elegoo Neptune 4 Plus are both FDM 3D printers competing in different tiers, $449 vs $299. Both are scored across value, beginner-friendliness, quality, speed, and reliability. Here's the full breakdown.
Our Verdict
The Bambu Lab P1S takes the crown with 9/10 vs 8.4/10. It pulls ahead in Print Quality, Speed, Reliability. That said, the Elegoo Neptune 4 Plus saves you $150 and wins on Value.
Score Breakdown
Specifications
| Spec | Bambu Lab P1S | Elegoo Neptune 4 Plus |
|---|---|---|
| Price | $449 | $299 |
| Type | FDM | FDM |
| Build Volume | 256 x 256 x 256 mm | 320 x 320 x 385 mm |
| Print Speed | 500 mm/s | 500 mm/s |
| Min Resolution | 0.05 mm | 0.05 mm |
| Weight | 14.13 kg | 12.5 kg |
| Overall Score | 9/10 | 8.4/10 |
Pros & Cons
Bambu Lab P1S
+HEPA filter actually handles ABS fumes, not just PLA smell
+CoreXY at 500mm/s inside an enclosed chamber
+Reliability track record is as good as anything at this price
+AMS multi-material works without the constant jams you get on cheaper systems
−$449 without AMS, which adds another $100-150 on top
−Enclosure lid has to come off to reach prints mid-job
−P1P owners considering an upgrade: this is it, but it stings
Elegoo Neptune 4 Plus
+320×320×385mm at $299 — the largest build volume at this price point
+Stock Klipper means real input shaping, pressure advance, and Moonraker API access
+Direct-drive handles TPU and flexible filaments without clog risk
+Mainsail interface enables remote monitoring and print farm integration
+Dual Z-axis prevents gantry sag on tall prints
−Open-frame limits material compatibility — ABS/ASA require an enclosure
−500mm/s achievable but optimal quality typically at 200-300mm/s
−Large bed means longer homing and leveling cycles
−Elegoo's support and community is smaller than Creality's
Who Should Buy Which?
Choose the Bambu Lab P1S if you want:
- A great printer for engineering
- A great printer for abs
- A great printer for enclosed
- Enclosed
- Multi-material (AMS)
- WiFi
Choose the Elegoo Neptune 4 Plus if you want:
- A great printer for large-format
- A great printer for value
- A great printer for beginner
- A great printer for speed
- Stock Klipper firmware with Mainsail web interface
- 320×320×385mm XL build volume
- 500mm/s max print speed with input shaping
Frequently Asked Questions
Is the Bambu Lab P1S better than the Elegoo Neptune 4 Plus?
By the numbers, the Bambu Lab P1S scores higher (9/10). But "better" depends on your use case, the Elegoo Neptune 4 Plus may be the smarter buy if you need large-format.
Which is better for beginners, Bambu Lab P1S or Elegoo Neptune 4 Plus?
Both score 8/10 for beginners. Go with the Elegoo Neptune 4 Plus to save $150.
Is the Bambu Lab P1S worth $150 more than the Elegoo Neptune 4 Plus?
The Bambu Lab P1S scores higher overall (9/10 vs 8.4/10). The extra $150 gets you hepa filter actually handles abs fumes, not just pla smell.
What's the main difference between Bambu Lab P1S and Elegoo Neptune 4 Plus?
Build volume (256x256x256mm vs 320x320x385mm) and print speed (500 vs 500 mm/s). The Bambu Lab P1S is best for engineering; the Elegoo Neptune 4 Plus targets large-format.