# Bambu Lab H2S vs Prusa Research Original Prusa MK4S

As of Nov 4, 2026, the Bambu Lab H2S costs $1,049 and the Prusa Research Original Prusa MK4S costs $999, so the Prusa Research Original Prusa MK4S is $50 cheaper. The Prusa Research Original Prusa MK4S scores higher in our ranking (7.5 vs 6.1 out of 10). Pick the Bambu Lab H2S for large prints and engineering filaments. Pick the Prusa Research Original Prusa MK4S for quality focused makers who like to tinker.

Prices checked Nov 4, 2026. HTML version: https://robotsforthat.com/vs/bambu-lab-h2s-vs-prusa-mk4s/

## Side by side

| | Bambu Lab H2S | Prusa Research Original Prusa MK4S |
|---|---|---|
| Price | $1,049 | $999 |
| 3 year cost | $1,049 | $999 |
| Our score | 6.1/10 | 7.5/10 |
| Rank in 3D printers | #28 | #18 |
| Status | on sale | on sale |
| Warranty | n/a | 1 year for buyers outside the EU, including the US (Prusa knowledge base) |
| Build volume | 340 x 320 x 340 mm (Bambu Lab) | 250 x 210 x 220 mm |
| Print speed | Up to 1,000 mm/s toolhead speed, 20,000 mm/s2 acceleration (Bambu Lab) | No max speed published; Tom's Hardware measured 24 mm3/s volumetric flow with Prusament PLA |
| Multi color | Yes with AMS 2 Pro (AMS Combo version); single nozzle, so color changes purge filament. CGMagazine says chained AMS units can hold 16 or more spools | Optional MMU3 upgrade |
| Enclosure | Yes, fully enclosed with active chamber heating up to 65 C (Bambu Lab) | No, open frame; optional Original Prusa Enclosure |
| Auto leveling | Yes, automatic calibration; first run calibration took about 30 minutes for The Gadgeteer | Yes, automatic mesh bed leveling with a load cell sensor |
| Max nozzle temp | 350 C (Bambu Lab) | 290 C |
| Heated bed | Yes, up to 120 C (CGMagazine, The Gadgeteer) | Yes, up to 120 C |
| Filament types | PLA, PETG, TPU, ABS, ASA, PC, PPA, PA6 GF, PAHT CF and other fiber filled engineering filaments (Bambu Lab) | PLA, PETG, Flex, PVA, PC, PP, CPE, PVB; ABS, ASA, HIPS, PA with the enclosure and filtration add on |
| Connectivity | Cloud, LAN, full offline mode, USB drive (not included); MQTT access in Developer Mode (Bambu Lab) | Wi-Fi module included, NFC, USB drive |
| Camera | Yes, 3 cameras including a top down BirdsEye camera and a toolhead camera, with AI failure detection (Bambu Lab) | n/a |
| Noise | Below 50 dB (Bambu Lab claim, measured at 1 m) | Tom's Hardware found it very quiet, suitable for a shared office |
| Assembly | Ships assembled; CGMagazine says unboxing needs two people and setup with calibration can take more than 30 minutes | Sold assembled or as a kit; Tom's Hardware estimates about 8 hours to build the kit |
| Weight | 30 kg printer alone, 40.7 kg AMS combo (The Gadgeteer) | 7 kg; 500 x 550 x 400 mm |
| Best for | large prints and engineering filaments | quality focused makers who like to tinker |
| Skip if | you print lots of multi color models | you want an enclosure or multi color included |

## What reviewers found

### Bambu Lab H2S

- CGMagazine (8/10): Called it refined and reliable. Real world print times were about 20 to 30% shorter than typical fast CoreXY profiles and aggregated XY error measured under 0.5 mm. Multi color prints ran a few hours longer than on the H2D on day long jobs, with considerable purge waste. [Source](https://www.cgmagonline.com/review/hardware/bambu-lab-h2s-3d-printer)
- The Gadgeteer: Ran the H2S AMS 2 Pro combo for about a month, often around the clock. First calibration took about 30 minutes, PETG CF prints finished well and the AMS 2 Pro was nearly error free. Downsides were purge waste on multi color jobs and the pricey optional Vision Encoder. [Source](https://the-gadgeteer.com/?p=485726)

### Prusa Research Original Prusa MK4S

- Tom's Hardware: Called it one of the best printers they have tested. Flow rose to 24 mm3/s with Prusament PLA, and a puzzle print took 2 h 59 min versus 3 h 23 min on a Bambu P1P with smoother parts that fit. [Source](https://www.tomshardware.com/3d-printing/prusa-mk4s-review)
- TechRadar (5/5): Scored 30 of 30 in its print quality test with a combined dimensional error of 0.097 mm, and every Benchy in its multi print test finished. Noted the high price and open frame. [Source](https://www.techradar.com/pro/original-prusa-mk4s-3d-printer-review)

## Questions buyers ask

### Which is better, the Bambu Lab H2S or the Prusa Research Original Prusa MK4S?

The Prusa Research Original Prusa MK4S scores higher in our ranking (7.5 vs 6.1 out of 10). Pick the Bambu Lab H2S for large prints and engineering filaments. Pick the Prusa Research Original Prusa MK4S for quality focused makers who like to tinker.

### Which is cheaper?

The Prusa Research Original Prusa MK4S at $999, versus $1,049 for the Bambu Lab H2S, checked Nov 4, 2026.

### What is the difference between the H2S and the Original Prusa MK4S?

Build volume: 340 x 320 x 340 mm (Bambu Lab) on the H2S, 250 x 210 x 220 mm on the Original Prusa MK4S. Print speed: Up to 1,000 mm/s toolhead speed, 20,000 mm/s2 acceleration (Bambu Lab) on the H2S, No max speed published; Tom's Hardware measured 24 mm3/s volumetric flow with Prusament… on the Original Prusa MK4S. Multi color: Yes with AMS 2 Pro (AMS Combo version); single nozzle, so color changes purge filament… on the H2S, Optional MMU3 upgrade on the Original Prusa MK4S.

Full reviews: [Bambu Lab H2S](https://robotsforthat.com/robot/bambu-lab-h2s/index.md), [Prusa Research Original Prusa MK4S](https://robotsforthat.com/robot/prusa-mk4s/index.md)