The Bambu Lab H2D (professional) and Prusa Research MK4S (prosumer) come from different brands and sit in different tiers, so this is less a head-to-head than a question of how much printer you need. The H2D costs $820 more and gets you 215% more build volume and a top speed of 1,000 mm/s (vs 500); the MK4S answers with an open-source design.
First-generation product — no release history to base predictions on
Best for: Professional makers and small studios who need dual-material printing for engineering parts with soluble supports — or two-material prints with minimal purge waste.
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 →| Bambu Lab H2D | Prusa Research MK4S | |
|---|---|---|
| Pricing | ||
| Starting Price | $1,549 | ★ $729 |
| Print Specs | ||
| Tier | Professional | Prosumer |
| Motion | CoreXY | BedSlinger |
| Build Volume | ★ 350 × 320 × 325 mm | 250 × 210 × 220 mm |
| Max Speed | ★ 1000 mm/s | 500 mm/s |
| Multicolor | ★ ✅ 4 slots | ❌ No |
| Enclosure | ★ ✅ | ❌ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ❌ | ★ ✅ |
| Upgrade Kit | — | 🔧 From MK4, MK3.5 |
| Buy Timing | ||
| Released | Mar 25, 2025 | Aug 13, 2024 |
| Cycle length | — | ~730 days |
| Cycle advice | Caution | Upgrade Kit |
| Deals advice | Buy | Buy |
| Next model | — | — |
The H2D was released on Mar 25, 2025, 597 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 MK4S lists at $729 and the H2D at $1,549 — $820 apart, so the H2D costs 112% more.
Per litre of build volume, that works out to $43 for the H2D versus $63 for the MK4S — so the pricier H2D actually gives you more build space per dollar.
If you are buying before Dec 1, 2026, the active sale tips value toward the H2D.
Our pick for most buyers is the H2D, for 215% more build volume and a top speed of 1,000 mm/s (vs 500). Go for the MK4S instead if you want to spend less — it is $820 cheaper ($729 vs $1,549). The H2D is also in a sale window right now (Bambu Black Friday 2026, until Dec 1, 2026).
How we judge timing and deals: read our methodology →
The H2D's toolhead carries two nozzles, each with its own material. Switching between them avoids most of the purge waste of single-nozzle filament changes and enables dual-material prints including PVA/PLA soluble support combinations.
350×320×325 mm gives more print area than the standard 256 mm Bambu models — suited for larger professional parts.
The H2D supports a wide range of engineering filaments including PA-CF, PETG-CF, and PC with its enclosed chamber.
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.