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 →First-generation product — recently released, still early days
Best for: Professional makers and small studios who need the maximum enclosed build volume in Qidi's lineup for large engineering parts, architectural models, or batch production — at a price point below the Bambu H2S.
Full details →| Elegoo Neptune 4 Pro | Qidi Tech Max4 | |
|---|---|---|
| Tier | Prosumer | Professional |
| Motion | CoreXY | CoreXY |
| Build Volume | 225 × 225 × 265 mm | 390 × 390 × 340 mm |
| Max Speed | 500 mm/s | 800 mm/s |
| Multicolor | ❌ No | ✅ 4 slots |
| Enclosure | ❌ | ✅ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ❌ | ❌ |
| Upgrade Kit | — | — |
| Released | Jul 15, 2023 | Dec 1, 2025 |
| Cycle length | ~450 days | — |
| Cycle advice | Wait | Buy |
| Deals advice | Buy | Caution |
| Next model | — | — |
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 Max4 offers the largest build volume in Qidi's lineup — enabling large functional parts, architectural models, and production batch runs that exceed Plus4 capacity.
The Max4's closed-loop XY adds positional feedback for improved accuracy at high speeds — a differentiating feature at this price tier that reduces dimensional errors on large prints.
Qidi's proven active chamber heating technology scaled to a 390×390 mm bed — critical for consistent ABS, ASA, PA-CF, and PPS-CF results across the full build plate.