Bambu Lab X1 Carbon vs Prusa Research MK4S
Side-by-side from manufacturer-published specs and live store prices — green cells mark the better number. Sources and dates on each model's page.
| Bambu Lab X1 Carbon | Prusa Research MK4S | |
|---|---|---|
| Price | $1,199 (launch MSRP (US), as of 2026-09-05) | $799 (official store, 2026-09-05) |
| Build volume | 256 × 256 × 256 mm (16.8 L) | 250 × 210 × 220 mm (11.6 L) |
| Max speed (advertised) | 500 mm/s (max, advertised) | not stated by manufacturer |
| Enclosure | Enclosed | Open frame (enclosure optional) |
| Multi-color / multi-material | AMS multi-material (4 spools; chainable to 16) | MMU3 multi-material optional (5 spools) |
| Auto leveling | Full-auto (lidar-assisted, hands-free) | Full-auto (loadcell tap, hands-free) |
| Motion system | CoreXY | Bedslinger (Cartesian) |
| Materials | Carbon/glass-fiber capable (hardened extruder + nozzle); ABS/ASA/PA in enclosure | PLA/PETG/ASA/PC blends; EU-built, best-in-class support |
Pick the Bambu Lab X1 Carbon if…
- you print bigger parts — 1.5× the build volume
- you print ABS/ASA or want temperature stability — it is the enclosed machine
Pick the Prusa Research MK4S if…
- you want to spend less — it is $400 cheaper at today's prices
What this comparison can't tell you: print quality,
noise, reliability and support are not in any spec sheet. The green cells
are arithmetic on manufacturer numbers, not a review.