FilamentMatch

Prusa MK4S vs Bambu Lab P1S

Our call: Bambu Lab P1S (MatchScore 91 vs 87) — but the coverage lines below can flip it for your bench.

Prusa

MK4S

open-source reliability, repairability

$1,099open frameFast

Material coverage

4 clean · 6 with mods · 0 no

★ Our pick

Bambu Lab

P1S

enclosed all-rounder, ABS-ready

$699enclosedVery fast

Material coverage

8 clean · 2 with mods · 0 no

Prusa MK4S vs Bambu Lab P1S specification comparison
SpecPrusa MK4SBambu Lab P1S
Street price$1,099$699
Build volume250 × 210 × 220 mm256 × 256 × 256 mm
Max bed temp120°C100°C
Max hotend temp290°C300°C
EnclosureOpen — kit availableFully enclosed
Hardened nozzleSwap availableSwap available
Multi-colorMMU3 (optional add-on)AMS (optional add-on)
Speed classFastVery fast
Material coverage4 clean · 6 mods · 0 no8 clean · 2 mods · 0 no
MatchScore87/10091/100

Where the verdicts split

4 of 10 materials get a different verdict on these two machines — this is usually the whole decision.

Materials where Prusa MK4S and Bambu Lab P1S verdicts differ
MaterialMK4SP1S
ABSWith modsPrints clean
ASAWith modsPrints clean
PC (Polycarbonate)With modsPrints clean
PA (Nylon)With modsPrints clean

The verdict

Buy the Bambu Lab P1S if you want the better overall package — it leads the MatchScore 91 to 87 and is the stronger fit for enclosed all-rounder, ABS-ready.

Buy the Prusa MK4S if its strengths match your bench — it's built for open-source reliability, repairability. Note that our pick is also the cheaper machine ($699 vs $1,099), which makes this one less of a dilemma than the spec sheets suggest. Either way, check each machine's full row on the match matrix before you commit to a material diet.