Mid-cycle — watch for announcements before buying
🔧 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 →Late in cycle — a new model is likely coming soon
Best for: Makers who need enclosed CoreXY printing for PA-CF and ASA on a budget — and want a capable alternative to Bambu without the ecosystem lock-in.
Full details →| Prusa Research MK4S | Creality K1C | |
|---|---|---|
| Tier | Prosumer | Prosumer |
| Motion | BedSlinger | CoreXY |
| Build Volume | 250 × 210 × 220 mm | 220 × 220 × 250 mm |
| Max Speed | 500 mm/s | 600 mm/s |
| Multicolor | ❌ No | ❌ No |
| Enclosure | ❌ | ✅ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ✅ | ❌ |
| Upgrade Kit | 🔧 From MK4, MK3.5 | — |
| Materials | PLA, PETG, ABS, ASA, TPU, PA, PC | PLA, PETG, ABS, ASA, TPU, PA-CF |
| Released | Mar 20, 2024 | Jan 20, 2024 |
| Cycle length | ~730 days | ~450 days |
| Cycle advice | Caution | Wait |
| Deals advice | Caution | Buy |
| Next model | Prusa MK5 (Expected 2027) | K1C 2 or K2 successor (Expected mid-2026) |
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 K1C ships with a hardened steel nozzle rated for carbon-fiber filaments — a significant cost advantage over printers that require aftermarket nozzle upgrades.
Few printers under $400 offer genuine enclosure capability. The K1C delivers ABS and ASA-capable chamber temperatures.
Competitive speed with Bambu's P-series at a fraction of the price.