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 →Early in release cycle — no urgency to wait
Best for: First-time buyers and hobbyists who want the easiest path to multicolor FDM printing without breaking the bank.
Full details →| Prusa Research MK4S | Bambu Lab A1 Mini 2 | |
|---|---|---|
| Tier | Prosumer | Entry |
| Motion | BedSlinger | BedSlinger |
| Build Volume | 250 × 210 × 220 mm | 180 × 180 × 180 mm |
| Max Speed | 500 mm/s | 500 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, TPU |
| Released | Mar 20, 2024 | Nov 1, 2025 |
| Cycle length | ~730 days | ~365 days |
| Cycle advice | Caution | Buy |
| Deals advice | Caution | Caution |
| Next model | Prusa MK5 (Expected 2027) | A1 Mini 3 (Expected Q4 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.
Automatic bed leveling, first-layer calibration, and Bambu's guided workflow mean most users are printing within 15 minutes of unboxing.
The Combo bundle includes AMS Lite for 4-color filament switching — unprecedented at this price tier.
The Mini 2 addresses the original's noise complaints with an improved motion system and better damping.