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 →First-generation product — recently released, still early days
Best for: Budget-conscious makers who want multicolor printing at the lowest possible entry price and don't need a large build volume or premium features.
Full details →| Prusa Research MK4S | Anycubic Kobra X | |
|---|---|---|
| Tier | Prosumer | Entry |
| Motion | BedSlinger | BedSlinger |
| Build Volume | 250 × 210 × 220 mm | 260 × 260 × 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 | Mar 1, 2026 |
| Cycle length | ~730 days | — |
| Cycle advice | Upgrade Kit | Buy |
| Deals advice | Buy | Caution |
| 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.
At $279–299 with ACE Gen 2 included, the Kobra X is one of the most affordable ways to get into multicolor FDM printing.
A slightly larger cube-format build volume than the Kobra 3 V2's 255×255×260 mm bed — practical for most everyday prints.
The second-generation ACE Gen 2 offers improved filament switching reliability over the original ACE Pro, with support for up to 4 colors per print.