Bambu Lab A1
- Price
- $299
- Score
- 9.2/10
- Wins
- 3/5
Bambu Lab A1 vs Prusa MK4S
- The Bambu Lab A1 wins, 9.2 vs 7.8 out of 10.
- A1 prints 1.5× the volume (256³ ÷ 250×210×220 = 1.45) and costs $630 ($929 − $299) less.
- A1 is faster, 500 vs 200 mm/s.
- Pick the Prusa MK4S if your prints fit in 22 cm.
Specs and US prices from the PrintPick catalog, checked 2026-09-29. Scores are PrintPick ratings out of 10.
Prusa MK4S
- Price
- $929
- Score
- 7.8/10
- Wins
- 1/5
The verdict
Buy the A1.
9.2/10 vs Prusa MK4S's 7.8/10, and it wins 3 of 5 categories. If you know you don't care about multi-color, this is the cleanest $299 in 3D printing. The A1 Combo is $100 more and includes multi-color; most people should just spend the extra $100.
Specs, side by side
Teal wins the row.
A1Bambu Lab · FDM
vsPrusa MK4SPrusa Research · FDM
| A1 | Spec | Prusa MK4S |
|---|---|---|
| $299 (wins) | Price | $929 |
| 16.8 L (wins) | Build volume | 11.6 L |
| 500 mm/s (wins) | Top speed | 200 mm/s |
| 0.05 mm | Finest layer | 0.05 mm |
| 9.05 kg | Weight | 7 kg |
Features
| A1 | Feature | Prusa MK4S |
|---|---|---|
| Yes | Auto bed leveling | Yes |
| Yes | WiFi | No |
| Yes | Camera | No |
| Yes | Vibration compensation | No |
| Yes | Direct drive | No |
| Yes | Full-size A1 bed | No |
| No | Open source | Yes |
| No | PrusaSlicer | Yes |
| No | Nextruder | Yes |
| No | Input shaping | Yes |
| No | Ethernet | Yes |
Value math
$299 ÷ 16.8 L and $929 ÷ 11.6 L. Lower is more printer for the money.
| A1 | Spec | Prusa MK4S |
|---|---|---|
| $17.82 (wins) | $ per liter | $80.43 |
| $0.60 (wins) | $ per mm/s | $4.64 |
Scores out of 10
| A1 | Spec | Prusa MK4S |
|---|---|---|
| 9 (wins) | Value | 6 |
| 10 (wins) | Beginner Friendliness | 8 |
| 9 | Print Quality | 9 |
| 9 (wins) | Speed | 6 |
| 9 | Reliability | 10 (wins) |
| 9.2 (wins) | Overall | 7.8 |
Build space, front view, to one scale
- 256 × 256 × 256 mm
- 250 × 210 × 220 mm
What owners say
The A1 without AMS is the best single-color printer you can buy at this price. Bar none.
A1 owner, r/3DprintingSame great hardware as the Combo, just without the color changer. Perfect for most people.
A1 owner, Make Anything (YouTube)My MK3 ran for 5 years without a single failed print. The MK4S continues that legacy.
Prusa MK4S owner, r/prusa3dIf reliability is your #1 priority, nothing beats Prusa. Nothing.
Prusa MK4S owner, Thomas Sanladerer (YouTube)
Pros & Cons
A1
- +Full 256mm build volume, same as the Combo but $100 cheaper
- +Bambu's reliability, slicer, and support at $299
- +500mm/s speed that's calibrated and ready without tweaking
- −Open frame: ABS warping is a real problem without modification
- −No multi-color in the box: the Combo is $100 more and includes it
Prusa MK4S
- +Prusa's QC is genuinely better than anyone else's: every printer is test-printed before shipping
- +PrusaSlicer is open source and powerful, no subscription, no cloud required
- +Customer support answers in hours, not weeks
- −200mm/s max is a third of what CoreXY machines do at half the price
- −$929 for an open-frame bed-slinger is a hard sell in 2025
Buy these with it
A printer does nothing without these. Grab them in the same order.
- ELEGOO PLA filament, 1kgThe easy filament to start on. Prints at low temperatures and warps less.
- ELEGOO PETG filament, 1kgTougher and more heat tolerant than PLA, for parts that get handled or sit in the sun.
- SUNLU filament dryer S1 PlusWet filament causes stringing and rough surfaces. A dryer fixes that before you blame the printer.
Frequently Asked Questions
Is the Bambu Lab A1 better than the Prusa MK4S?
By the numbers, the Bambu Lab A1 scores higher (9.2/10). But "better" depends on your use case, the Prusa MK4S may be the smarter buy if you need reliability.
Which is better for beginners, Bambu Lab A1 or Prusa MK4S?
The Bambu Lab A1 is more beginner-friendly (10/10 vs 8/10) with easier setup and a gentler learning curve.
Is the Prusa MK4S worth $630 more than the Bambu Lab A1?
The Bambu Lab A1 actually scores higher (9.2/10) despite costing $630 less. The Prusa MK4S only makes sense if you specifically need reliability.
What's the main difference between Bambu Lab A1 and Prusa MK4S?
Build volume (256x256x256mm vs 250x210x220mm) and print speed (500 vs 200 mm/s). The Bambu Lab A1 is best for beginners; the Prusa MK4S targets reliability.