The P Series is Bambu Lab’s enclosed mid-range tier, the step up from the open-frame A Series that unlocks ABS, ASA, and engineering filament printing in a compact desktop footprint. Two machines: the P1S (first-generation, still available at discount) and the P2S (current, recommended). Same 256mm build volume. Better chamber control with each iteration.
Before comparing P2S to P1S, understand what you get regardless of which model you choose:
| Specification | P2S | P1S |
|---|---|---|
| Build Volume | 256 × 256 × 256mm | 256 × 256 × 256mm |
| Max Print Speed | 500mm/s | 500mm/s |
| Chamber Heating | Active — up to 50°C | Passive (enclosure retains ambient heat) |
| Display | 5-inch color touchscreen | Small monochrome display |
| AI Monitoring | Spaghetti, nozzle clump, purge jam — auto-pause | Camera (no AI detection) |
| Extruder | Upgraded — 70% stronger than P1S | Standard direct drive |
| Multi-Color | Up to 16 colors (4× AMS 2 Pro) | Up to 16 colors (4× AMS 2 Pro) |
| Starts From | $549+ | $399+ (promotional) |
The P2S launched in late 2025 as a direct replacement for the P1S. It keeps everything that made the P1S the go-to enclosed mid-range machine and fixes what experienced users wanted better. The headline improvements: a 50°C actively heated chamber, a 5-inch color touchscreen, and AI-powered print monitoring that pauses the printer automatically when it detects a failure. At $549 standalone or $799 Combo with the AMS 2 Pro, the P2S is the current recommendation for anyone buying an enclosed Bambu printer in this tier.
| Build Volume | 256 × 256 × 256mm |
| Architecture | Enclosed CoreXY |
| Max Print Speed | 500mm/s |
| Max Hotend Temp | 300°C |
| Chamber Heating | Active — up to 50°C |
| Display | 5-inch color touchscreen |
| AI Monitoring | Spaghetti, nozzle clump, purge jam detection — auto-pause on failure |
| Extruder | Upgraded direct drive — 70% stronger than P1S |
| Multi-Color | AMS 2 Pro compatible — up to 16 colors (4× AMS 2 Pro) |
| Materials | PLA, PETG, TPU, ABS, ASA, PC, PA, PET + CF/GF reinforced variants |
| Connectivity | Wi-Fi, LAN — Bambu Studio + Bambu Handy app |
| Availability | Bambu Lab store, Best Buy (US), Micro Center (US) |
Makers who want reliable enclosed desktop printing for PLA through engineering filaments. Anyone running overnight prints who wants AI to catch failures automatically. Upgraders from the A Series stepping up to an enclosed machine. The best all-around mid-range Bambu printer for 2025–2026.
Makers who only print PLA and PETG and don’t need the enclosure — the A Series covers that at lower cost. Anyone needing build volume over 256mm — look at the A2L (330mm) or H Series (330–340mm). Anyone who wants dual extrusion — the X2D handles that at $649.
The P1S was the definitive enclosed desktop printer for serious hobbyists from its launch until the P2S replaced it in late 2025. It brought CoreXY precision, full enclosure, 300°C hotend capability, and AMS 2 Pro multi-color support to the mid-range price bracket. Bambu still sells the P1S at promotional pricing while stock lasts.
The main differences from the P2S: the P1S has a passive enclosure (no active chamber heating), a smaller monochrome display rather than a touchscreen, and an older extruder design. Print quality at standard settings is nearly identical to the P2S for PLA and PETG. The P2S is a better daily experience; the P1S at $399 or less is a better value.
| Build Volume | 256 × 256 × 256mm |
| Architecture | Enclosed CoreXY |
| Max Print Speed | 500mm/s |
| Max Hotend Temp | 300°C |
| Max Bed Temp | 120°C |
| Chamber Heating | Passive — enclosure retains ambient heat; no active heating |
| Enclosure | Yes — fully enclosed with HEPA and activated carbon filter |
| Multi-Color | AMS 2 Pro compatible — up to 16 colors (4× AMS 2 Pro) |
| Display | Small monochrome display — main control via Bambu Studio or Handy app |
| Materials | PLA, PETG, TPU, ABS, ASA, PC, PA, PET + CF/GF reinforced variants |
| Connectivity | Wi-Fi, LAN — Bambu Studio + Bambu Handy app |
| Availability | Bambu Lab store — promotional pricing while stock lasts |
Budget-conscious buyers who can find the P1S at promotional pricing. Those who want a fully enclosed machine under $450. Existing P1S owners deciding whether the P2S upgrade is worth it (usually not for PLA/PETG printing).
Buyers purchasing new at full price — the P2S is the better choice at its current price point. Anyone who wants active chamber heating, AI monitoring, or a touchscreen — those are P2S features only.
| Your situation | Recommended | Why |
|---|---|---|
| Buying new. Want the best enclosed Bambu in this price range. | P2S | $549+. Active 50°C chamber, touchscreen, AI monitoring, stronger extruder. The current generation. |
| Budget under $450. P1S available at promotional price. | P1S | At $399 or less the P1S is excellent value. Prints equally well for PLA and PETG. The P2S experience is better; the P1S price is better when discounted. |
| Want to print ABS, ASA, or PA reliably with active chamber control. | P2S | The actively heated 50°C chamber meaningfully improves results on temperature-sensitive engineering materials vs the P1S’s passive enclosure. |
| Run overnight prints and want AI to catch failures automatically. | P2S | AI monitoring auto-pauses on spaghetti, nozzle clumping, and purge block jams. The P1S doesn’t have this. |
| Already own a P1S. Considering whether to upgrade. | Keep the P1S | Print quality difference is minimal for PLA/PETG. The P2S is a better experience but not a dramatic quality upgrade. Save the money for filament. |
| Need build volume over 256mm or want large-format printing. | A2L or H Series | A2L is $569 with 330mm open-frame build. H2S from $1,249 with 340mm enclosed. Both P Series printers cap at 256mm. |