Bambu Lab’s P1S has long been a reliable go-to for makers needing a fully enclosed, CoreXY printer with multi-material support via AMS. But with the release of the P2S Combo, Bambu Lab is pushing that platform further — integrating enhancements from higher-end models (like H-series) to make it more future-proof and capable.
In this post, we’ll compare what’s new in the P2S versus the P1S, why those changes matter in day-to-day printing, and who should consider upgrading.

Here are the major improvements and new features in P2S (as reported by reviews, announcements, and leaks) compared to P1S:
| Feature | P1S | P2S (New / Upgraded) |
|---|---|---|
| Build Volume | 256 × 256 × 256 mm | Same: 256 × 256 × 256 mm |
| Top Speed | Up to 500 mm/s | Increased—reportedly up to 600 mm/s |
| Bed Temperature | Standard heated bed (up to ~100-110 °C) | Heated bed increased to 110 °C |
| User Interface / Display | Monochrome or simpler screen | New 5-inch color touchscreen with updated UI, borrowed from H-series models |
| Adaptive Airflow & Chamber Control | Enclosed chamber, passive airflow | New Adaptive Airflow System that draws external cool air when needed while maintaining chamber environment |
| Extruder & Motion Hardware | Standard P-series hardware | Upgraded extruder hardware, better sensors and reliability (from reports) |
| Multi-Material Support | Requires AMS add-on | P2S Combo ships with AMS 2 Pro built-in (multi-filament capability) |
| Material Compatibility | PLA, PETG, ABS, some PC | Maintains wide compatibility up to PC, but lacks active chamber (so may still be limited vs H-series) |
| Reliability & Workflow Enhancements | Proven but dated interface | More refined, reliable, smarter error detection, and firmware enhancements |
Upgrades sound nice on paper, but what do they actually mean in real printing scenarios?
Faster Printing with Confidence
Pushing from 500 mm/s to 600 mm/s means you can complete models quicker. The updated extruder, better sensors, and cooling system make that speed usable rather than just theoretical.
Better Adhesion & Material Options
The hotter bed (110 °C) opens up better adhesion for filaments like ABS or PC, which often struggle on cooler surfaces. That helps avoid warping and improves layer bonding.
Smarter Airflow = Cleaner Prints
The P2S’s Adaptive Airflow automatically regulates chamber environment, letting you close the door even during printing of standard filaments without overheating or print defects.
More Reliable Multi-Material from the Start
Having AMS 2 Pro integrated means P2S is multi-material ready out of the box. No separate add-ons required, which lowers barrier to start printing color or support-material combinations.
Fresher UI & Workflow
The 5-inch color touchscreen and updated UI speed up setup, make status easier to check at a glance, and reduce friction in everyday use. Less time messing with menus, more time printing.
Better Hardware Durability & Maintenance
Upgraded sensors, more robust components, and hardware refinements reduce calibration needs, downtime, and mechanical failures over time.
No upgrade is perfect. Here are some things to be aware of:
No active heated chamber
Unlike H-series, P2S doesn’t (for now) include a full chamber heater, so printing very heat-sensitive filaments still might be limited.
Filament waste from color swaps
As with most single-nozzle multi-material printers, you’ll still have purge waste when switching filaments.
Closed ecosystem
Bambu Lab tends toward integrated software and firmware. If you like modding or custom firmware, you may hit limitations.
Price premium
With more features, the P2S is likely more expensive than P1S—and whether the upgrade is worth it depends on how much you use the advanced features.
Choose P2S if:
You want a modernized, faster printer with all the newer features.
You plan to use multi-material printing frequently.
You value smoother workflow, smarter sensors, and more reliable hardware.
You want capability for tougher materials (ABS, PC) without jumping to the H-series.
Stick with P1S if:
You already own one and it still meets your needs.
You mostly print PLA, PETG without needing the extra speed or features.
Price sensitivity is important, and you don’t need all the new hardware.
The P2S Combo is not just a refresh—it brings several H-series features down into a more accessible format. For makers and professionals, it offers a compelling middle ground: performance upgrades, smoother workflow, and future-proofing—without completely stepping into premium printer territory.
5 comments
Julien
AI generated article.
Dennis Winston
I appreciate positive and constructive criticism reviews rather than useless and random thoughts that don’t even matter to a potential consumer. Thanks Morton! 👍🏻
Dennis Winston
I appreciate positive and constructive criticism reviews rather than useless and random thoughts that don’t even matter to a potential consumer. Thanks Morton! 👍🏻
John
AI generated garbage.
Morton Biback
I appreciate the honest comments comparing the P1S and P2S. It is refreshing to see these sincere statements.
Morton