Early in release cycle — no urgency to wait
Best for: Professional makers and studios who need Bambu's largest enclosed build volume for high-throughput production, engineering materials, and optional AMS multicolor — without the complexity of dual-nozzle printing.
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 CoreXY with Klipper firmware for customization — without Bambu's closed ecosystem or Prusa's premium pricing.
Full details →| Bambu Lab H2S | Elegoo Neptune 4 Pro | |
|---|---|---|
| Pricing | ||
| Starting Price | $1,249 | ★ $260 |
| Print Specs | ||
| Tier | Professional | Prosumer |
| Motion | CoreXY | CoreXY |
| Build Volume | ★ 340 × 320 × 340 mm | 225 × 225 × 265 mm |
| Max Speed | ★ 1000 mm/s | 500 mm/s |
| Multicolor | ★ ✅ 4 slots | ❌ No |
| Enclosure | ★ ✅ | ❌ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ❌ | ❌ |
| Upgrade Kit | — | — |
| Buy Timing | ||
| Released | Aug 26, 2025 | Jul 15, 2023 |
| Cycle length | ~730 days | ~450 days |
| Cycle advice | Buy | Wait |
| Deals advice | Caution | Buy |
| Next model | — | — |
The H2S offers 220% the print volume of the X1C. At 1000 mm/s it is also Bambu's fastest printer, making it the top choice for high-throughput professional production.
The enclosed chamber with active heating handles the full engineering filament spectrum — ABS, ASA, PA, PA-CF, PC, and PPS — with consistent results across the full build plate.
The H2S supports up to 12 AMS units (4 AMS 2 Pro + 8 AMS HT), enabling 24-filament printing for large-format multicolor production.
The Neptune 4 Pro ships with Klipper pre-installed — enabling advanced input shaping, pressure advance, and configuration flexibility without modding.
Competitive CoreXY speed at a price significantly below Bambu and Prusa alternatives.
Full automatic bed leveling reduces setup time and calibration friction.