Prusa MK4S
An open-frame workhorse for hobbyists and makers who want proven Prusa reliability, kit-or-assembled choice and an upgrade path to 5-color printing.
Bundles and current deals
Assembled $999 on the US store (import duties included); kit $709. MMU3 bundles also offered with the assembled MK4S. Optional enclosure. Black Friday promo (Oct 22–Nov 30, 2026) adds free gifts/shipping, not a price cut.
- Build volume
- 11.6litres
- Top speed
- –
- Max colours
- 5
- Frame
- Open frame

Will Wright’s take
“The tinkerer's workhorse: open, repairable and built to last.”
Prusa doesn't chase speed numbers, but you get excellent first layers, a kit option and parts you can actually fix yourself. It's pricey for an open bed slinger. You're paying for openness and support, which is worth it to some people and not to others.
People who value open source and repairability
You want the most speed and features per dollar
Against 41 other filament printers
Strengths and drawbacks
What it does well
- Fully automatic load-cell first-layer calibration
- Available as a cheaper kit
- Open source, repairable, MMU3 upgrade path
Worth knowing
- Open frame; ABS/ASA/PA need the optional enclosure
- No published max speed/acceleration figures
Every number, in one place
- Price
- $999
- Released
- August 2024
- Technology
- Filament (FDM)
- Motion system
- Bed slinger
- Build volume
- 250 × 210 × 220 mm
- Max colours
- 5 with MMU3 (optional add-on)
- Frame
- Open frame
- Hotend, max
- 290 °C
- Bed, max
- 120 °C
- Weight
- 7 kg
- Materials
- PLA, PETG, Flex/TPU, PVA, PC, PP, CPE, PVB, ABS, ASA, HIPS, PA
- Features
- automatic mesh bed leveling (load cell), input shaper, Nextruder direct drive, quick-swap nozzle, filament sensor, power-loss recovery (Power Panic), Wi-Fi (ESP module included), Ethernet, NFC, 3.5-inch color touchscreen, 360° part cooling, optional enclosure (up to 45 °C)
Sources: prusa3d.com, blog.prusa3d.com, prusa3d.com. The buy button may earn us a commission. Disclosure.