The Bambu Lab P2S and Elegoo Neptune 4 Pro are both prosumer-tier printers, but the P2S costs 2.1× as much — so the question is what the extra money buys. The P2S costs $289 more and gets you an enclosed chamber (with PA, PA-CF and PC on its materials list) and 4-slot multicolor.
Early in release cycle — no urgency to wait
Best for: Serious makers and prosumers who need enclosed printing for ABS, ASA, PA, PA-CF, and PC — and want Bambu's plug-and-play experience at a prosumer price.
Full details →Overdue for a refresh — no successor announced yet. Prices should be at their lowest
Best for: Budget-conscious makers who want a capable bed-slinger with Klipper firmware for customization — without Bambu's closed ecosystem or Prusa's premium pricing.
Full details →| Bambu Lab P2S | Elegoo Neptune 4 Pro | |
|---|---|---|
| Pricing | ||
| Starting Price | $549 | ★ $260 |
| Print Specs | ||
| Tier | Prosumer | Prosumer |
| Motion | CoreXY | BedSlinger |
| Build Volume | ★ 256 × 256 × 256 mm | 225 × 225 × 265 mm |
| Max Speed | ★ 600 mm/s | 500 mm/s |
| Multicolor | ★ ✅ 4 slots | ❌ No |
| Enclosure | ★ ✅ | ❌ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ❌ | ❌ |
| Upgrade Kit | — | — |
| Buy Timing | ||
| Released | Oct 14, 2025 | Jul 15, 2023 |
| Cycle length | ~832 days | ~450 days |
| Cycle advice | Buy | Wait |
| Deals advice | Buy | Buy |
| Next model | P3S or next prosumer model (Expected late 2027) | — |
The P2S was released on Oct 14, 2025, 394 days ago. Based on Bambu Lab's release cadence, we expect the next model (P3S or next prosumer model) around late 2027 — about 323 days away, which puts the P2S 55% of the way through its cycle.
The Neptune 4 Pro was released on Jul 15, 2023, 1,216 days ago. Its previous release cycle ran about 450 days; it is now 766 days past that point and no successor has been announced.
On timing alone, the P2S is the safer buy right now — it is only 55% of the way through its expected cycle, while the Neptune 4 Pro is 766 days past its ~450-day cycle with no successor announced.
Cycle and deal status as of November 12, 2026. See the launch calendar →
The Neptune 4 Pro lists at $260 and the P2S at $549 — $289 apart, so the P2S costs 111% more.
Per litre of build volume, that works out to $33 for the P2S versus $19 for the Neptune 4 Pro — the Neptune 4 Pro is the better value per litre as well.
With both in sale windows until Dec 5, 2026, this is a good moment to buy either — compare the live sale prices before you decide.
Our pick for most buyers is the P2S, for an enclosed chamber (with PA, PA-CF and PC on its materials list) and 4-slot multicolor, plus a higher editor score (9.2 vs 7.7) and better buy-now timing. Go for the Neptune 4 Pro instead if you want to spend less — it is $289 cheaper ($260 vs $549).
How we judge timing and deals: read our methodology →
The P2S enclosure maintains a more consistent chamber temperature over the P1S, reducing warping on long ABS and PA prints.
PLA through PC — the P2S handles the entire engineering filament spectrum with reliable results.
The P-series CoreXY enclosure design strikes the best balance of price, speed, and material capability in Bambu's lineup.
The Neptune 4 Pro ships with Klipper pre-installed — enabling advanced input shaping, pressure advance, and configuration flexibility without modding.
A 500 mm/s rated speed at a price significantly below Bambu and Prusa alternatives.
Full automatic bed leveling reduces setup time and calibration friction.