Bambu Lab P1S
- Price
- $449
- Score
- 9/10
- Wins
- 3/5
Bambu Lab P1S vs Elegoo Neptune 4 Pro
- The Bambu Lab P1S wins, 9 vs 8 out of 10.
- P1S prints 1.3× the volume (256³ ÷ 225×225×265 = 1.25) for $190 ($449 − $259) more.
- Same 500 mm/s top speed.
- Pick the Neptune 4 Pro if your prints fit in 26.5 cm.
Specs and US prices from the PrintPick catalog, checked 2026-09-29. Scores are PrintPick ratings out of 10.
Elegoo Neptune 4 Pro
- Price
- $259
- Score
- 8/10
- Wins
- 1/5
The verdict
Buy the P1S.
9/10 vs Neptune 4 Pro's 8/10, and it wins 3 of 5 categories. Buy this if you print ABS, ASA, or anything that smells or warps in open air. The enclosure and filtration aren't optional extras, they're the whole point. If you only print PLA, save $50 and get the A1 Combo.
Specs, side by side
Teal wins the row.
P1SBambu Lab · FDM
vsNeptune 4 ProElegoo · FDM
| P1S | Spec | Neptune 4 Pro |
|---|---|---|
| $449 | Price | $259 (wins) |
| 16.8 L (wins) | Build volume | 13.4 L |
| 500 mm/s | Top speed | 500 mm/s |
| 0.05 mm | Finest layer | 0.05 mm |
| 14.13 kg | Weight | 10.5 kg |
Features
| P1S | Feature | Neptune 4 Pro |
|---|---|---|
| Yes | Enclosed | No |
| Yes | Multi-material (AMS) | No |
| Yes | WiFi | No |
| Yes | Camera | No |
| Yes | HEPA filter | No |
| Yes | Active chamber heating | No |
| No | Klipper firmware | Yes |
| No | Auto bed leveling | Yes |
| No | Direct drive | Yes |
| No | PEI build plate | Yes |
| No | Linear rails | Yes |
Value math
$449 ÷ 16.8 L and $259 ÷ 13.4 L. Lower is more printer for the money.
| P1S | Spec | Neptune 4 Pro |
|---|---|---|
| $26.76 | $ per liter | $19.31 (wins) |
| $0.90 | $ per mm/s | $0.52 (wins) |
Scores out of 10
| P1S | Spec | Neptune 4 Pro |
|---|---|---|
| 8 | Value | 9 (wins) |
| 8 | Beginner Friendliness | 8 |
| 10 (wins) | Print Quality | 8 |
| 9 (wins) | Speed | 8 |
| 10 (wins) | Reliability | 7 |
| 9 (wins) | Overall | 8 |
Build space, front view, to one scale
- 256 × 256 × 256 mm
- 225 × 225 × 265 mm
What owners say
The P1S is the printer I tell people to buy when they say 'I want something that just works.'
P1S owner, r/3DprintingRefreshing a best seller. The P1S is the strong choice for anyone wanting to print ABS without headaches.
P1S owner, Tom's HardwareLinear rails at $259 is wild. This thing flies.
Neptune 4 Pro owner, r/3DprintingElegoo came out swinging with the Neptune 4 series. Solid contender.
Neptune 4 Pro owner, Maker's Muse (YouTube)
Pros & Cons
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
- −$449 without AMS, which adds another $100-150 on top
- −Enclosure lid has to come off to reach prints mid-job
Neptune 4 Pro
- +Linear rails at $259 is a feature you normally pay $400+ for
- +Klipper pre-installed with decent out-of-box profiles
- +500mm/s sustained prints well with stock settings
- −Early units shipped with firmware bugs that needed patching
- −Elegoo's support community is a fraction of Creality's size
Buy these with it
A printer does nothing without these. Grab them in the same order.
- ELEGOO PLA filament, 1kgThe easy filament to start on. Prints at low temperatures and warps less.
- ELEGOO PETG filament, 1kgTougher and more heat tolerant than PLA, for parts that get handled or sit in the sun.
- SUNLU filament dryer S1 PlusWet filament causes stringing and rough surfaces. A dryer fixes that before you blame the printer.
Frequently Asked Questions
Is the Bambu Lab P1S better than the Elegoo Neptune 4 Pro?
By the numbers, the Bambu Lab P1S scores higher (9/10). But "better" depends on your use case, the Elegoo Neptune 4 Pro may be the smarter buy if you need budget.
Which is better for beginners, Bambu Lab P1S or Elegoo Neptune 4 Pro?
Both score 8/10 for beginners. Go with the Elegoo Neptune 4 Pro to save $190.
Is the Bambu Lab P1S worth $190 more than the Elegoo Neptune 4 Pro?
The Bambu Lab P1S scores higher overall (9/10 vs 8/10). The extra $190 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 Pro?
Build volume (256x256x256mm vs 225x225x265mm) and print speed (500 vs 500 mm/s). The Bambu Lab P1S is best for engineering; the Elegoo Neptune 4 Pro targets budget.