The Bambu Lab H2S (professional) and Prusa Research CORE One+ (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. Both are enclosed CoreXY printers with automatic calibration. The H2S costs $250 more and gets you 149% more build volume and a top speed of 1,000 mm/s (vs 600); the CORE One+ answers with an open-source design and 8 multicolor slots to the H2S's 4.
Mid-cycle — watch for announcements before buying
Best for: Professional makers and studios who need Bambu's largest enclosed build volume for high-throughput production, engineering materials, and optional AMS multicolor — without the complexity of dual-nozzle printing.
Full details →Early in release cycle — no urgency to wait
🔧 Upgrade kit available — from CORE One+, MK4S
Best for: Makers who want CoreXY speed and precision with Prusa's open-source ethos, community support, and long-term repairability — without Bambu's closed ecosystem.
Full details →| Bambu Lab H2S | Prusa Research CORE One+ | |
|---|---|---|
| Pricing | ||
| Starting Price | $1,249 | ★ $999 |
| Print Specs | ||
| Tier | Professional | Prosumer |
| Motion | CoreXY | CoreXY |
| Build Volume | ★ 340 × 320 × 340 mm | 250 × 220 × 270 mm |
| Max Speed | ★ 1000 mm/s | 600 mm/s |
| Multicolor | ✅ 4 slots | ★ ✅ 8 slots |
| Enclosure | ✅ | ✅ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ❌ | ★ ✅ |
| Upgrade Kit | — | 🔧 From CORE One+, MK4S |
| Buy Timing | ||
| Released | Aug 26, 2025 | Aug 13, 2026 |
| Cycle length | ~730 days | ~209 days |
| Cycle advice | Caution | Buy |
| Deals advice | Buy | Caution |
| Next model | — | — |
The H2S was released on Aug 26, 2025, 443 days ago. Its previous release cycle ran about 730 days, so it is 61% of the way through — roughly 287 days before a successor would be due at that pace.
The CORE One+ was released on Aug 13, 2026, 91 days ago. Its previous release cycle ran about 209 days, so it is 44% of the way through — roughly 118 days before a successor would be due at that pace.
On timing alone, the CORE One+ is the safer buy right now — it is only 44% of the way through its expected cycle, while the H2S is mid-cycle (61% through).
Cycle and deal status as of November 12, 2026. See the launch calendar →
The CORE One+ lists at $999 and the H2S at $1,249 — $250 apart, so the H2S costs 25% more.
Per litre of build volume, that works out to $34 for the H2S versus $67 for the CORE One+ — so the pricier H2S actually gives you more build space per dollar.
If you are buying before Dec 5, 2026, the active sale tips value toward the H2S.
This one is close on paper. If your parts fit within the CORE One+'s 250 × 220 × 270 mm, save the $250; if not, the H2S's 149% extra build volume earns its premium. The CORE One+ also brings an open-source design and 8 multicolor slots to the H2S's 4.
How we judge timing and deals: read our methodology →
The H2S offers more than twice the print volume of the X2D. At 1000 mm/s it is also among Bambu's fastest printers, making it the top choice for high-throughput professional production.
The enclosed chamber with active heating handles the full engineering filament spectrum — ABS, ASA, PA, PA-CF, PC, and PPS — with consistent results across the full build plate.
The H2S supports up to 12 AMS units (4 AMS 2 Pro + 8 AMS HT), enabling 24-filament printing for large-format multicolor production.
The CORE One+ matches Bambu CoreXY speed (600 mm/s) while keeping everything open source — firmware, hardware, slicing profiles.
Unlike Bambu's closed ecosystem, every component of the CORE One+ can be modified, repaired, or community-improved.
The CORE One+ (Gen 2) can be ordered with Prusa's INDX toolchanger in 4- or 8-tool versions, shipping from 15 October 2026. Each material gets its own nozzle, with about 12 seconds per material change and almost no purge waste. The MMU3 remains compatible as a 5-color add-on.