Compare Elegoo Neptune 4 vs FLSUN S1
In this technical comparison between the Elegoo Neptune 4 and the FLSUN S1, we analyze the key features to help you choose.
Choosing between these two 3D Printers models often comes down to your budget, with prices around Approximately $210.00 - $240.00 USD and ~$1,299.00 - $1,499.00.
| Specifications |
Elegoo Neptune 4 |
FLSUN S1 |
|---|---|---|
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| Launch | ||
| Version | June 2023 | November 2023 |
| Print Performance | ||
| Build Volume | 225 x 225 x 265 mm | 320mm ×430 mm (Cylindrical build area) |
| Speed & Accel | Max speed 500 mm/s (250 mm/s recommended); Max acceleration 12,000 mm/s² | Max Speed: 1200 mm/s; Max Acceleration: 40,000 mm/s 2 |
| Layer Precision | 0.1 mm – 0.4 mm | 0.1 - 0.35 mm (High-speed optimized) |
| Extruder & Hotend | ||
| Extruder System | Self-developed Dual-Gear Direct Drive (5.2:1 reduction ratio); weight reduced to 75% of previous models. | Ultra-light Dual-Gear Direct Drive (High-flow design) |
| Hotend Max Temp | 300°C (supports high-temp filaments like Nylon). | 350 °C (80W Ceramic Heater) |
| Nozzle Specs | 0.4 mm standard; utilizes a copper-titanium bi-metal throat pipe for efficient heat dissipation | 0.4 mm Hardened Steel (Supports high-flow & abrasive materials) |
| Build Plate & Leveling | ||
| Bed Temp & Surface | Up to 110°C; PEI Magnetic Spring Steel plate. | 120 °C; Textured PEI Spring Steel with Smart Zone Heating |
| Leveling System | 121-point (11x11) auto bed leveling via inductive sensor, plus auxiliary manual leveling knobs. | Fully Automatic with Microtac Radar (Lidar) & Active Vibration Compensation |
| Materials & Sensors | ||
| Filament Support | PLA, PETG, TPU, ABS, ASA, and Nylon. | 1.75 mm; PLA, PETG, TPU, ABS, ASA, PA, PC, PLA-CF/GF |
| Smart Sensors | Filament run-out sensor, Power loss recovery. | Filament Runout, Clog Detection, and Filament Weight Monitoring |
| Air Management | Features a massive rear cooling fan array (4x4020 blower fans) attached to the X-axis for rapid layer cooling. | Internal Filament Drying Room (Integrated) + HEPA/Carbon Filtration |
| Connectivity & Monitoring | ||
| Interfaces | USB, LAN (Ethernet), and MicroSD card. | Wi-Fi, USB Drive (16GB Internal EMMC + 32GB Flash) |
| Camera & AI | Supports USB webcams via the Klipper interface (Fluidd/Mainsail) for remote monitoring. | Built-in 1080p AI Camera (Spaghetti/Debris detection & Timelapse) |
| Remote Mgmt | Web-based control via LAN (Fluidd interface); supports remote file management and status updates. | FLSUN OS (Web UI), Mobile App, PC Remote Control |
| UI & Software | ||
| Control Panel | 4.3-inch removable capacitive touchscreen (handheld corded design). | 7-inch "Full-Integration" Color Touchscreen |
| Compatible Slicers | Elegoo Cura (included), standard Cura, PrusaSlicer, and OrcaSlicer (most popular choice in 2026). | FLSUN Slicer, Cura, OrcaSlicer, PrusaSlicer |
| Physical & Power | ||
| Dimensions & Weight | 475 x 445 x 515 mm; Net weight 8.3 kg. | 550× 595× 1030 mm; Net Weight: 39 kg |
| Power & Noise | ~50 dB during standard operation; significantly louder when the auxiliary fan array is at 100% speed. | 1300W Max (at 220V); Operating Noise: ≤ 55dB |
| Misc | ||
| Inside the Box | Printer (partially assembled), Tool kit, 10m filament sample, USB drive, Spare nozzles, and the auxiliary fan assembly. | Toolkit (Wrenches, Cutters, Grease), Spare Nozzle, 200g Test Filament, SD Card/Reader, Spool Rack |
| Price | Approximately $210.00 - $240.00 USD | ~$1,299.00 - $1,499.00 |
| Full Details | Neptune 4 - Full Specifications | S1 - Full Specifications |