Late in cycle — a new model is likely coming soon
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 →Mid-cycle — watch for announcements before buying
Best for: Professional makers, small studios, and engineers who need dual-material printing — particularly for PVA soluble supports, dual-color engineering parts, or high-throughput production.
Full details →| Elegoo Neptune 4 Pro | Bambu Lab H2S | |
|---|---|---|
| Tier | Prosumer | Professional |
| Motion | CoreXY | CoreXY |
| Build Volume | 225 × 225 × 265 mm | 350 × 320 × 325 mm |
| Max Speed | 500 mm/s | 600 mm/s |
| Multicolor | ❌ No | ✅ 2 slots |
| Enclosure | ❌ | ✅ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ❌ | ❌ |
| Upgrade Kit | — | — |
| Materials | PLA, PETG, ABS, ASA, TPU | PLA, PETG, ABS, ASA, TPU, PA, PA-CF, PC, PETG-CF |
| Released | Jul 15, 2023 | Jun 15, 2025 |
| Cycle length | ~450 days | ~270 days |
| Cycle advice | Wait | Caution |
| Deals advice | Buy | Caution |
| Next model | Neptune 5 Pro (Expected mid-2026) | H2C (Expected late 2026) |
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.
The H2S adds better high-speed cooling and more consistent layer adhesion at 600 mm/s, addressing key H2D pain points.
Dual-nozzle printing eliminates the purge tower required by filament-switching systems — faster prints, less wasted filament.
Print PLA + PVA or ABS + HIPS combinations for complex geometries that would be impossible with a single material.