The Flashforge Adventurer 5M Pro and Prusa Research MK4S are both prosumer-tier printers, but the MK4S costs 1.9× as much — so the question is what the extra money buys. The MK4S costs $350 more and gets you extra engineering materials (PA and PC) and an open-source design; the Adventurer 5M Pro answers with an enclosed chamber (with PA-CF on its materials list) and a top speed of 600 mm/s (vs 500).
First-generation product — no release history to base predictions on
Best for: Home users, educators, and office environments who need a compact enclosed printer with genuine air filtration — and primarily print PLA, PETG, and occasional ABS.
Full details →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 →| Flashforge Adventurer 5M Pro | Prusa Research MK4S | |
|---|---|---|
| Pricing | ||
| Starting Price | ★ $379 | $729 |
| Print Specs | ||
| 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 | ❌ No | ❌ No |
| Enclosure | ★ ✅ | ❌ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ❌ | ★ ✅ |
| Upgrade Kit | — | 🔧 From MK4, MK3.5 |
| Buy Timing | ||
| Released | Sep 1, 2023 | Aug 13, 2024 |
| Cycle length | — | ~730 days |
| Cycle advice | Caution | Upgrade Kit |
| Deals advice | Buy | Buy |
| Next model | — | — |
The Adventurer 5M Pro was released on Sep 1, 2023, 1,168 days ago. It is a first-generation product, so there is no earlier cycle to predict its successor from.
The MK4S was released on Aug 13, 2024, 821 days ago. Its previous release cycle ran about 730 days; it is now 91 days past that point and no successor has been announced.
Neither is a clear buy-now on timing, so watch for announcements before committing.
Cycle and deal status as of November 12, 2026. See the launch calendar →
The Adventurer 5M Pro lists at $379 and the MK4S at $729 — $350 apart, so the MK4S costs 92% more.
Per litre of build volume, that works out to $36 for the Adventurer 5M Pro versus $63 for the MK4S — the Adventurer 5M Pro is the better value per litre as well.
If you are buying before Dec 5, 2026, the active sale tips value toward the Adventurer 5M Pro.
This one is close on paper. If you will stick to materials both printers list (PLA, PETG, ABS and ASA), save the $350; if you need PA and PC, the MK4S earns its premium. The Adventurer 5M Pro also brings an enclosed chamber (with PA-CF on its materials list) and a top speed of 600 mm/s (vs 500).
How we judge timing and deals: read our methodology →
Removes 99% of particulates and VOCs generated during printing. One of the strongest air filtration systems in the consumer printer category.
Nozzles snap in and out without tools or heating. Swapping between 0.25, 0.4, 0.6, and 0.8mm nozzles takes seconds — ideal for classrooms and multi-user environments.
Full enclosure in a compact body that fits comfortably on a desk — unusually rare 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.