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.
Direct answer
Bambu Lab P1S is the better pick for most buyers.
Choose Bambu Lab P1S if you want the stronger overall score, better fit for engineering and abs, and the safer recommendation. Choose Elegoo Neptune 4 Plus only if its specific strengths matter more to you than the overall result.
Winner by buyer type
Best overall
Bambu Lab P1S
Best value
Elegoo Neptune 4 Plus
Best build volume
Elegoo Neptune 4 Plus
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.