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"Bambu Lab A1 vs P1S" is one of the first comparisons American buyers type. On Bambu Lab's own spec sheets the two print the same 256 x 256 x 256 mm cube at the same 500 mm/s top speed with the same 300°C nozzle and 100°C bed. What separates them is the box around the P1S, what that box lets you print, and the price.
Side by side
| A1 | A1 Combo | P1S | P1S Combo | |
|---|---|---|---|---|
| Price at Shop3D Universe (Nov 7, 2026) | $259 | $359 | $349 | $479 |
| Build volume | 10.1 x 10.1 x 10.1 in (256 x 256 x 256 mm) | 10.1 x 10.1 x 10.1 in (256 x 256 x 256 mm) | 10.1 x 10.1 x 10.1 in (256 x 256 x 256 mm) | 10.1 x 10.1 x 10.1 in (256 x 256 x 256 mm) |
| Max toolhead speed | 500 mm/s max | 500 mm/s max | 500 mm/s max | 500 mm/s max |
| Enclosure | No enclosure listed | No enclosure listed | Enclosed | Enclosed |
| Colors in the box | 1 (add-on: AMS lite) | 4 colors with AMS lite in the box | 1 (add-on: AMS 2 Pro) | 4 colors with AMS in the box |
| Max heatbed | 100°C (212°F) | 100°C (212°F) | 100°C (212°F) | 100°C (212°F) |
| ABS and ASA | "Not Recommended" | "Not Recommended" | listed ("Ideal") | listed ("Ideal") |
| Max power at 110 V | 350 W | 350 W | 350 W | 350 W |
| Net weight | 18.3 lb (8.3 kg) | 18.3 lb (8.3 kg) | 28.5 lb (12.95 kg) | 28.5 lb (12.95 kg) |
| Footprint (W x D x H) | 18.3 x 16.1 x 16.9 in | 18.3 x 16.1 x 16.9 in | 15.3 x 15.3 x 18 in | 15.3 x 15.3 x 18 in |
| Printer + one year of five 40 g PLA prints a week at full power, U.S. avg [calc] | $432.35 | $532.35 | $522.35 | $652.35 |
How we compare: criteria, sources and dates
Prices from Shop3D Universe on November 7, 2026 (Bambu Lab's U.S. store could not be read from our server). The yearly line is the printer price plus 260 prints of 40 g of PLA at $13.49 per kg and 2 hours at 350 W, at the U.S. average of 18.16 cents per kWh [calc]: running costs are identical, so the gap is the price gap.
What the enclosure changes
Bambu Lab rates ABS, ASA and PET "Ideal" on the P1S and lists PA and PC as "Capable"; on the A1, ABS, ASA, PC, PA, PET and fiber-reinforced filaments are "Not Recommended". Its ABS filament guide adds that ABS "requires an enclosure due to its unpleasant odor". If your parts are PLA, PETG or TPU, the published specs give the enclosure nothing to do.
The four versions
FDM
Bambu Lab A1
10.1 x 10.1 x 10.1 inbuild volume, as published
- Type
- FDM (filament)
- Max speed
- 500 mm/s max
- Enclosure
- No enclosure listed
- Colors
- 1 (add-on: AMS lite)
- Power
- 350 W max
- Weight
- 18.3 lb (8.3 kg)
$259 $299price checked November 7, 2026; it may have changed
- Bambu Lab US storeprice not read from our serverSee it ›
FDM4 colors
Bambu Lab A1 Combo
10.1 x 10.1 x 10.1 inbuild volume, as published
- Type
- FDM (filament)
- Max speed
- 500 mm/s max
- Enclosure
- No enclosure listed
- Colors
- 4 colors with AMS lite in the box
- Power
- 350 W max
- Weight
- 18.3 lb (8.3 kg)
$359 $399price checked November 7, 2026; it may have changed
- Bambu Lab US storeprice not read from our serverSee it ›
FDMEnclosed
Bambu Lab P1S
10.1 x 10.1 x 10.1 inbuild volume, as published
- Type
- FDM (filament)
- Max speed
- 500 mm/s max
- Enclosure
- Enclosed
- Colors
- 1 (add-on: AMS 2 Pro)
- Power
- 350 W max
- Weight
- 28.5 lb (12.95 kg)
$349 $399price checked November 7, 2026; it may have changed
- Bambu Lab US storeprice not read from our serverSee it ›
FDMEnclosed4 colors
Bambu Lab P1S Combo
10.1 x 10.1 x 10.1 inbuild volume, as published
- Type
- FDM (filament)
- Max speed
- 500 mm/s max
- Enclosure
- Enclosed
- Colors
- 4 colors with AMS in the box
- Power
- 350 W max
- Weight
- 28.5 lb (12.95 kg)
$479 $549price checked November 7, 2026; it may have changed
- Bambu Lab US storeprice not read from our serverSee it ›
Bambu Lab sells newer printers in the same price band: the P2S ($449 at Shop3D Universe, enclosed, 600 mm/s, steady-state 200 W printing PLA) and the A2L ($439, 330 x 320 x 325 mm, open). They are in the full comparison; check a part against all of them with Will it print?
Frequently asked questions
Is the P1S worth it over the A1?
If you will print ABS or ASA, yes on paper: Bambu Lab lists them as "Ideal" on the enclosed P1S and "Not Recommended" on the open A1. For PLA, PETG and TPU only, the published specs are the same (256 mm cube, 500 mm/s, 300°C nozzle) and the A1 was $90 cheaper at Shop3D Universe on November 7, 2026.
Which is cheaper to run, A1 or P1S?
Bambu Lab publishes the same maximum for both at 110 V: 350 W. With the same spool, a print costs the same on either at full power [calc]. Bambu Lab publishes no steady-state PLA figure for these two.
Do they take the same multicolor unit?
No. The A1 Combo comes with the AMS lite; the P1S Combo with the AMS. Both feed four spools; Bambu Lab says up to 16 colors if you stack four AMS units on the P1S.
Which takes less space?
The P1S is narrower and taller: 15.3 x 15.3 x 18 in against 18.3 x 16.1 x 16.9 in for the A1, from Bambu Lab's published dimensions [calc]. It is also heavier: 28.5 lb against 18.3 lb.