Bambu Lab A1 mini vs A1 vs P1S vs P2S: Which to Choose?
Summary
Compare the Bambu Lab A1 mini, A1, P1S and P2S by build size, enclosure, filament support and multicolor system. The A1 mini has a 180 mm cube build volume; the other three list a 256 mm cube. The open-frame A1 models and enclosed P-series serve different material needs. If considering an X1 Carbon instead, check its separate end-of-life and support dates below.
The four models compared
| Feature | A1 mini | A1 | P1S | P2S |
|---|---|---|---|---|
| Build volume | 180 × 180 × 180 mm | 256 × 256 × 256 mm | 256 × 256 × 256 mm | 256 × 256 × 256 mm |
| Enclosure | No | No | Yes (plastic and glass) | Door with door sensor |
| Max nozzle temp | 300 °C | — | 300 °C | 300 °C |
| Max bed temp | 80 °C | — | 100 °C | 110 °C |
| Multicolor | AMS lite | AMS lite | AMS, up to 16 colors | Combo ships with AMS 2 Pro |
The A1's maximum nozzle and bed temperatures were not recorded in this comparison. A dash means an unrecorded specification, not a zero or lack of that feature; check the exact model's current specifications before buying.
Bambu Lab's material table groups the A1 and A1 mini as open-frame printers. The A1 mini's store page says it prints most materials that don't need an enclosure, such as PLA, PETG, and TPU, and lists ABS, ASA, PC, PA, and fiber-reinforced filaments as not recommended. The P1S has an enclosure for high-temperature filament, and Bambu Lab rates ABS and ASA as ideal on it, alongside PLA, PETG, and TPU, with PA and PC as capable.
Which differences matter for your prints?
- Compare build volume with the largest part you want to print in one piece. The A1 mini's smaller volume is a meaningful difference even when using the same filament.
- Match the material to the exact printer's supported-filament guidance. The enclosure difference matters for materials such as ABS and ASA; a similar build volume does not make the A1 and P-series equivalent.
- Compare the multicolor system and bundle contents separately. AMS lite, AMS and AMS 2 Pro are different systems, and a printer-only listing is not the same package as a Combo.
What the P2S adds
Bambu Lab announced the P2S on October 14, 2025, calling it a reengineered version of the P1 series. The additions include the DynaSense extruder, an Active Airflow system that switches the airflow between cooling and keeping the chamber warm, a 5-inch touchscreen, 1080p live view, and a hotend that comes off as one assembly with no wiring to disconnect. The launch price in Europe was €519, or €749 for the Combo with an AMS 2 Pro, both including tax. In the same announcement, Bambu Lab wrote that the P1S will stay available and fully supported.
X1 series support dates
| Until | |
|---|---|
| Manufacturing and active sales | Ended March 31, 2026 |
| Software and firmware bug fixes and features | May 31, 2027 |
| Security patches | May 31, 2029 |
| Spare parts and support | March 31, 2031 |
Bambu Lab has stopped selling the X1 series directly, though it says some authorized distributors may still have units in stock with full warranty. It also warns that some parts may sell out before 2031 and recommends buying replacements in good time.
Sources
- Bambu Lab — A1 mini
- Bambu Lab — Best 3D Printer for Beginners (A1 build volume)
- Bambu Lab Wiki — Filament Guide (material table)
- Bambu Lab — P1S
- Bambu Lab Blog — Meet the P2S
- Bambu Lab Blog — The X1 Series is EOL
Specs and prices are as published on these pages on the date above and can change; check the manufacturer or retailer before you buy.