Technical comparison for 3D printers
| Specifications | Original Prusa MK4S | Elegoo Neptune 4 Pro |
|---|---|---|
| Printing Technology | FDM (Cartesian) | FDM (Klipper) |
| Build Volume (XYZ) | 250 x 210 x 220 mm³ | 225 x 225 x 265 mm³ |
| Chassis Structure | Die-cast Aluminum | N/A |
| Enclosure Material | N/A | N/A |
| Hotend Design | Nextruder with Quick-swap Nozzle | N/A |
| Extruder Gear Type | N/A | N/A |
| Nozzle Material | N/A | N/A |
| Max Nozzle Temp | 290 °C | 300 °C |
| Nozzle Diameter | 0.4 mm (High-flow) | N/A |
| Filament Diameter | 1.75 mm | N/A |
| Build Plate Surface | Removable Magnetic PEI Steel Sheet | PEI Magnetic Sheet |
| Max Bed Temp | 120 °C | N/A |
| Max Printing Speed | 200 mm/s | 500 mm/s |
| Max Acceleration | N/A | 20,000 mm/s² |
| Max Volumetric Flow | 26 mm³/s | N/A |
| Cooling System | 360° Turbine Cooling System | Dual-side Part Cooling Fans |
| Air Filtration | N/A | N/A |
| Supported Materials | PLA, PETG, ASA, ABS, PC, Nylon, Carbon Filled | PLA, PETG, TPU, ABS, Nylon |
| LiDAR Sensor | N/A | N/A |
| Chamber Camera | N/A | N/A |
| Filament Run-out Sensor | N/A | N/A |
| Power Loss Recovery | N/A | N/A |
| Physical Dimensions | 500 x 550 x 400 mm³ | 475 x 445 x 515 mm³ |
| Product Weight | 7.5 kg | 8.9 kg |
| Input Voltage | N/A | N/A |
| Peak Power Draw | N/A | N/A |
| Control Panel / Display | Color Graphic LCD | N/A |
| Connectivity Options | Wi-Fi, Ethernet, USB-C | Ethernet, USB-C, USB |
| Internal Storage | N/A | 8 GB EMMC |
| Motion Controller CPU | N/A | N/A |
| Application Processor | N/A | N/A |
| AI Neural Processing | N/A | N/A |
| Recommended Slicer | N/A | N/A |
| Supported OS | N/A | N/A |
| Bed Leveling System | Loadcell Sensor (Perfect First Layer) | N/A |
| Enclosure Type | N/A | N/A |
| Vibration Compensation | Input Shaper & Pressure Advance | N/A |
| AI Monitoring Features | N/A | N/A |
| Multi-Material Support | MMU3 Support (up to 5 colors) | N/A |
| Manufacturer Warranty | 2 Years (UK/EU) | 1 Year |
| Box Contents | MK4S, PEI Sheet, Tool kit, 1kg Filament | Neptune 4 Pro, Cooling fan, Tool kit, Filament |
| Brand | Prusa | Elegoo |
✅ Pros: Incredible reliability and industry-best support.
❌ Cons: Open frame design (enclosure is extra).
✅ Pros: Incredible value with Klipper and high speed.
❌ Cons: Large cooling fans are quite loud.
The Prusa MK4S is the clear winner for professionals who prioritize 100% uptime and ease of repair. The Neptune 4 Pro wins for hobbyists who want high-speed Klipper printing for less than half the price. **The trade-off:** The Neptune requires much more manual fine-tuning and 'tinkering' to stay accurate. We really wish the MK4S came with a faster cooling system to match the Neptune's raw speed. Buy the Prusa for a business you can depend on, or the Neptune for budget high-speed fun.