Late in cycle — but an upgrade kit is available. Existing owners can upgrade without buying new
🔧 Upgrade kit available — from MK4, MK3.5
Best for: Makers who value open-source hardware, community support, long-term repairability, and battle-tested reliability over raw speed or multicolor features.
Full details →Overdue for a refresh — no successor announced yet. Prices should be at their lowest
Best for: Budget makers who want 4-color multicolor printing without committing to the Bambu or Prusa ecosystem — and are comfortable with a less mature software experience.
Full details →| Prusa Research MK4S | Anycubic Kobra 3 | |
|---|---|---|
| Tier | Prosumer | Prosumer |
| Motion | BedSlinger | BedSlinger |
| Build Volume | 250 × 210 × 220 mm | 255 × 255 × 260 mm |
| Max Speed | 500 mm/s | 600 mm/s |
| Multicolor | ❌ No | ✅ 4 slots |
| Enclosure | ❌ | ❌ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ✅ | ❌ |
| Upgrade Kit | 🔧 From MK4, MK3.5 | — |
| Materials | PLA, PETG, ABS, ASA, TPU, PA, PC | PLA, PETG, ABS, TPU |
| Released | Mar 20, 2024 | May 15, 2025 |
| Cycle length | ~730 days | ~212 days |
| Cycle advice | Upgrade Kit | Wait |
| Deals advice | Buy | Buy |
| Next model | Prusa MK5 (Expected 2027) | — |
MK4 and MK3.5 owners can upgrade to MK4S specs without purchasing a whole new printer. This is Prusa's commitment to owners and is unique in the industry at this level.
Firmware, PCB schematics, hardware designs, and slicing profiles are all published under open licenses. You own the printer completely.
Prusa's forum, knowledge base, and repair guides are unmatched. Parts are stocked and available for years after purchase.
The V2 expands to 255×255×260 mm — 34% more printable volume than the original Kobra 3 — for larger parts and more batch production.
The V2 includes a 720p camera for real-time print monitoring and AI spaghetti detection, adding reliability features previously absent from the Kobra 3 line.
The Kobra 3 V2 Combo with ACE Pro is one of the most affordable 4-color setups available — often underpricing Bambu's A1 Combo.