๐Ÿ–จ 3D Printer Radar

Qidi Tech Plus4vsPrusa Research MK4S

Cross-ecosystem comparison: These printers use different software ecosystems. Accessories, filament profiles, and community support are not interchangeable between brands. Consider the total ecosystem cost, not just the printer price.
Qidi Tech Plus4
Buy/Wait:Wait

Overdue for a refresh โ€” no successor announced yet. Prices should be at their lowest

Best for: Makers and small businesses who need a large enclosed build volume for engineering materials at a prosumer price โ€” particularly those printing PA-CF, ABS, and PC at scale.

Full details โ†’
Prusa Research MK4S
Buy/Wait:Caution

Mid-cycle โ€” watch for announcements before buying

๐Ÿ”ง Upgrade kit available โ€” from MK4, MK3.5

Best for: Makers who value open-source hardware, community support, long-term repairability, and battle-tested reliability over raw speed or multicolor features.

Full details โ†’
Qidi Tech Plus4Prusa Research MK4S
TierProsumerProsumer
MotionCoreXYBedSlinger
Build Volume305 ร— 305 ร— 280 mm250 ร— 210 ร— 220 mm
Max Speed600 mm/s500 mm/s
Multicolorโœ… 4 slotsโŒ No
Enclosureโœ…โŒ
Auto Calibrationโœ…โœ…
Open SourceโŒโœ…
Upgrade Kitโ€”๐Ÿ”ง From MK4, MK3.5
MaterialsPLA, PETG, ABS, ASA, TPU, PA, PA-CF, PC, PPS-CFPLA, PETG, ABS, ASA, TPU, PA, PC
ReleasedSep 20, 2024Mar 20, 2024
Cycle length~408 days~730 days
Cycle adviceWaitCaution
Deals adviceBuyCaution
Next modelโ€”Prusa MK5 (Expected 2027)

Why buy each?

Qidi Tech Plus4

305ร—305ร—280 mm build volume

One of the largest build volumes in the prosumer enclosed category โ€” 40% more printable area than the Bambu X1C at a lower price point.

Active 65ยฐC chamber heating

The second-generation active heating delivers consistent chamber temperatures for PA, PA-CF, ABS, ASA, and PC with minimal warping across the full build plate.

370ยฐC bimetal hotend

Handles high-performance engineering composites including PA-CF, PET-CF, and PPS-CF without requiring a separate hotend upgrade.

Prusa Research MK4S

Upgrade kit available โ€” no need to buy new

MK4 and MK3.5 owners can upgrade to MK4S specs without purchasing a whole new printer. This is Prusa's commitment to owners and is unique in the industry at this level.

Fully open source

Firmware, PCB schematics, hardware designs, and slicing profiles are all published under open licenses. You own the printer completely.

Best community and documentation

Prusa's forum, knowledge base, and repair guides are unmatched. Parts are stocked and available for years after purchase.