First-generation product — recently released, still early days
Best for: Budget-conscious makers who want built-in 4-color multicolor printing under $400 — primarily for PLA and PETG. Open frame, so not suited for ABS or engineering filaments without the add-on enclosure.
Full details →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 →| Flashforge AD5X | Prusa Research MK4S | |
|---|---|---|
| Tier | Prosumer | Prosumer |
| Motion | CoreXY | BedSlinger |
| Build Volume | 220 × 220 × 220 mm | 250 × 210 × 220 mm |
| Max Speed | 600 mm/s | 500 mm/s |
| Multicolor | ✅ 4 slots | ❌ No |
| Enclosure | ❌ | ❌ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ❌ | ✅ |
| Upgrade Kit | — | 🔧 From MK4, MK3.5 |
| Materials | PLA, PETG, ABS, TPU, PLA-CF, PA-CF, PETG-CF | PLA, PETG, ABS, ASA, TPU, PA, PC |
| Released | Jun 15, 2025 | Mar 20, 2024 |
| Cycle length | — | ~730 days |
| Cycle advice | Buy | Caution |
| Deals advice | Caution | Caution |
| Next model | — | Prusa MK5 (Expected 2027) |
The AD5X undercuts comparable multicolor setups on price with IFS built directly into the printer — no separate accessory needed.
No cloud dependency or mandatory account. OrcaSlicer is community-standard open-source slicer software — familiar to most experienced makers.
Ships ready for PLA-CF and PETG-CF without requiring a nozzle upgrade — a genuine differentiator at this price point.
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.