ELEGOO Saturn 4 Ultra 16K

# ELEGOO Saturn 4 Ultra 16K

Overview

The ELEGOO Saturn 4 Ultra 16K is a 10-inch MSLA resin printer designed for high-detail desktop printing with more automation and process control than a basic hobby machine. Its 15120 × 6230 monochrome LCD provides a 14 × 19 µm XY pixel size, while the build volume measures 211.68 × 118.37 × 220 mm.

The printer combines ELEGOO's tilt-release system with automatic leveling, mechanical sensing, a resin-tank heater, dual-band Wi-Fi, and an upgraded camera with built-in chamber lighting. ELEGOO's smart tank-heating system is designed to bring the resin to about 30°C and maintain that target during printing, which can improve resin flow and consistency in cooler environments.

ELEGOO publishes a 0.01–0.20 mm layer-thickness range and a maximum vertical printing rate of 150 mm/h under its stated fast-mode conditions. As with other resin printers, that speed should not be treated as a universal result for every resin, exposure profile, layer height, and model.

For current US pricing, stock, and bundles, see the official ELEGOO Saturn 4 Ultra 16K product page.

Key Strengths

• 10-inch 16K monochrome LCD
• 15120 × 6230 screen resolution
• 14 × 19 µm XY pixel size
• 211.68 × 118.37 × 220 mm build volume
• 0.01–0.20 mm layer-thickness range
• Up to 150 mm/h published vertical printing speed
• Tilt Release technology
• Automatic leveling
• One-tap self-test
• Smart resin-tank heating to about 30°C
• Smart mechanical sensing
• Resin shortage and resin-level monitoring
• Residue detection
• Leveling-failure warning
• Upgraded AI camera with chamber light
• Empty-build-plate detection
• Warp detection
• Real-time monitoring and timelapse capture
• Power-loss recovery
• Overheat protection
• Dual-band Wi-Fi cluster printing
• PFA release film
• 9H tempered-glass LCD protector

Best For

1. Detailed miniatures and figurines
2. Collectibles and display models
3. Jewelry concepts and masters when paired with an appropriate resin
4. Fine-detail engineering prototypes
5. Educational and research use
6. Batch printing of small resin parts
7. Users who value automated leveling and resin-temperature control

Technical Specifications

Note: ELEGOO's 150 mm/h figure is a vertical resin-printing rate. The manufacturer notes that its approximately 5.5-second-per-layer fast-mode result depends on the specified fast mode and default CHITUBOX parameters, including a 2.5-second exposure time.

Important: The 14 × 19 µm figure is the XY pixel size of the exposure system. It should not be presented as a guaranteed ±14 or ±19 µm finished-part dimensional tolerance.

16K LCD and Print Detail

The Saturn 4 Ultra 16K uses a 10-inch monochrome LCD with 15120 × 6230 pixels.

Because the pixel pitch is not square, ELEGOO publishes an XY pixel size of 14 × 19 µm rather than one single number.

That distinction matters. Pixel size affects the smallest projected image element, but final printable detail and dimensional accuracy also depend on resin chemistry, exposure time, anti-aliasing, optical uniformity, part orientation, support placement, resin temperature, post-curing, and model geometry.

The printer also uses a 9H tempered-glass protector over the LCD.

For a smaller indexed ELEGOO resin option, compare the ELEGOO Mars 5 Ultra. Users who need a more tightly integrated professional resin workflow can also compare the Formlabs Form 4.

Tilt Release and Printing Speed

Instead of lifting the build platform straight upward to separate every layer, the Saturn 4 Ultra 16K tilts the resin tank.

ELEGOO uses this Tilt Release mechanism to reduce separation and refill time between layers.

The company publishes up to 150 mm/h maximum vertical print speed and approximately 5.5 seconds per layer under its stated fast-mode test conditions.

Real output depends on layer thickness, exposure time, resin viscosity, model cross-section, fast or slow mode, support structure, resin temperature, and slicer settings.

Smart Tank Heating

The Saturn 4 Ultra 16K includes an integrated resin-tank heating system.

ELEGOO states that the system preheats the resin and continues heating to keep it at approximately 30°C.

This can improve refill behavior and print consistency in cooler ambient conditions.

The heater controls the resin tank, not the entire printer enclosure.

For catalog purposes, the Saturn 4 Ultra 16K should therefore not be marked as having a heated chamber.

Recommended use: Treat 30°C as the printer's controlled resin target, not as a universal ideal temperature for every resin. Follow the resin manufacturer's temperature and exposure guidance.

Automatic Leveling and Mechanical Sensing

The Saturn 4 Ultra 16K includes:

• Automatic leveling
• One-tap self-test
• Resin-shortage warning
• Resin-level detection
• Residue detection
• Leveling-failure warning

These systems reduce routine setup but do not eliminate maintenance. The build plate, vat, release film, and sensing surfaces still need to be kept clean and undamaged.

AI Camera and Monitoring

The upgraded camera includes a chamber light and supports:

• Empty-build-plate detection
• Warp detection
• Real-time monitoring
• Timelapse photography

Important: ELEGOO notes that AI-detection results can vary with the environment, model, and resin. Treat the camera as a monitoring aid rather than a guarantee that every print failure will be detected.

Resin Compatibility

The Saturn 4 Ultra 16K uses 405 nm photopolymer resin.

Suitable formulations can include:

• Standard resin
• ABS-like resin
• Water-washable resin
• Tough resin
• Plant-based resin
• Castable resin
• High-detail resin
• Other compatible 405 nm photopolymers

Third-party resin may work well, but exposure settings should be calibrated rather than copied blindly from another printer.

Castable and Jewelry Resins

The fine pixel pitch makes the printer relevant to jewelry and small-detail workflows, but successful casting depends on the resin formulation, burnout schedule, support strategy, and investment process.

A high-resolution screen alone does not make every resin suitable for direct investment casting.

Release Film and Build Plate

The Saturn 4 Ultra 16K uses PFA release film and a laser-engraved build plate.

ELEGOO states that the machine tracks release-film usage and prompts for replacement after approximately 60,000 uses.

That counter is a maintenance reminder rather than a guarantee that every film will last exactly the same number of release cycles.

Power-Loss Recovery and Overheat Protection

The printer supports power-loss recovery.

ELEGOO also includes LED overheat protection that pauses printing and alerts the user if the UV LED temperature exceeds the manufacturer's threshold.

A resumed resin print should still be inspected for layer marks or dimensional effects caused by the interruption.

Dual-Band Wi-Fi and Cluster Printing

The Saturn 4 Ultra 16K includes dual-band Wi-Fi and USB file transfer.

ELEGOO's network workflow supports remote file transfer, printer monitoring, OTA firmware updates, and cluster management of multiple compatible printers.

Mars Mate Air Purifier Compatibility

The Saturn 4 Ultra 16K is compatible with ELEGOO's Mars Mate Air Purifier.

The purifier is optional.

Warning: An air purifier is not a substitute for appropriate room ventilation, personal protective equipment, or the resin manufacturer's safety guidance.

Resin Handling and Post-Processing

MSLA parts require post-processing after printing.

A typical workflow includes:

1. Drain excess resin
2. Remove the part from the build plate
3. Wash according to the resin manufacturer's instructions
4. Remove supports where appropriate
5. Dry the part
6. UV post-cure using the resin's specified conditions
7. Dispose of contaminated consumables responsibly

Warning: Uncured resin can irritate skin and eyes. Use appropriate gloves and eye protection, provide ventilation, and follow the resin safety data sheet.

Saturn 4 Ultra 16K vs Related Printers

The Saturn 4 Ultra 16K's strongest combination is fine pixel pitch, a useful mid-size resin build volume, tilt-release speed, and built-in resin heating.

Price and Availability

ELEGOO's official US store displayed a US$439 sale price when checked on August 12, 2026, reduced from a US$649.99 reference price.

The listing showed Add to Cart, so the US model is treated as available at the time of this review.

Promotions and stock can change quickly. Confirm the latest offer on the official ELEGOO US product page.

Callout Section

Recommended use: Choose the Saturn 4 Ultra 16K when you want a mid-size resin printer with very fine pixel pitch, automatic leveling, fast tilt release, network management, and built-in 30°C resin heating. If you mainly print smaller miniatures, a Mars-class machine may use less space; if you need a more controlled professional resin ecosystem, compare the Formlabs Form 4.

Frequently Asked Questions