Comparing a faster 12K resin format
Elegoo Saturn 4 Ultra
An MSLA resin printer with tilt-release technology, a 218.88 × 122.88 × 220 mm build volume, and a speed advertised up to 150 mm/h per Elegoo.
In short The Elegoo Saturn 4 Ultra is an resin (MSLA) 3D printer with a 218.88 × 122.88 × 220 mm (8.6 × 4.8 × 8.7 in) build volume. Elegoo claims a 10-inch 12K LCD, 19 µm XY resolution and up to 150 mm/h; the printer measures 327.4 × 329.2 × 548 mm (12.9 × 13 × 21.6 in) and weighs 14.5 kg (32 lb).
Documentary analysis · Not personally tested
Resin · MSLAWhy consider it?
Tilt-release technology for a speed advertised up to 150 mm/h, a 10-inch 12K screen, an AI monitoring camera, and power-loss resume printing per Elegoo.
What to verify
Flexible build plates are not compatible per Elegoo; AI detection results still vary with the environment, models, and resin type.
Elegoo Saturn 4 Ultra specifications
- Technology
- Resin (MSLA)
- Build volume
- 218.88 × 122.88 × 220 mm (8.6 × 4.8 × 8.7 in)
- Printer dimensions
- 327.4 × 329.2 × 548 mm (12.9 × 13 × 21.6 in)
- Weight
- 14.5 kg (32 lb)
- Enclosure
- Protective cover
- LCD screen
- 10 in · 12K
- XY resolution
- 19 µm
- Claimed print speed
- 150 mm/h
- Multicolor
- One resin at a time; no automatic color or material switching.
- Materials
- Compatible 405 nm UV resins for MSLA; profile and post-processing steps specific to each product, compatible with the Elegoo Marsmate purifier.
- Connectivity
- Wi-Fi, USB
- Listed features
- Auto bed leveling
How much space does it need?
The Elegoo Saturn 4 Ultra measures 327.4 × 329.2 × 548 mm (12.9 × 13 × 21.6 in) for a 218.88 × 122.88 × 220 mm (8.6 × 4.8 × 8.7 in) build volume: the dashed box is the printer, the solid cube the largest theoretical part, about 10% of the machine’s volume. Add room for the spool or multicolor unit, cables and ventilation.
Source: official Elegoo pages (elegoo.com), checked September 28, 2026. Manufacturer claims, not our measurements. Build volume is nominal: orientation, supports and reserved zones can reduce the usable space.
Which projects is it for?
The Saturn 4 Ultra carries over the 218.88 × 122.88 × 220 mm format and 10-inch 12K screen of the Saturn 4, adding tilt-release technology that pushes the advertised speed to 150 mm/h versus 70 mm/h on the standard model per Elegoo. This speed gain targets users printing regular batches of figurines or mid-size parts.
A fast mode and a slow mode can be selected as needed, leaving the option to fall back to more conventional printing for resins or parts that call for it.
Materials and setup
The printer runs compatible 405 nm UV resins, each with its own profile and post-processing steps per Elegoo. The COB light source and Fresnel collimating lens target the same light uniformity as the standard Saturn 4.
As with the Saturn 4, Elegoo specifies that flexible build plates are not compatible with this model, risking throwing off automatic plate detection or damaging the LCD screen.
What the bundle includes or not
The box includes the printer, Wi-Fi antenna, build plate, resin tank, an AI camera, and a resin drip tray per Elegoo's "What's In Box" list, with further items not detailed, 9 and up in total. The exact contents should be checked on the retailer's listing.
The AI camera detects empty plates and model warping per Elegoo, but the manufacturer notes that detection results vary depending on the environment, the models, and the resin type used.
Alternatives to compare
For an even higher resolution on a comparable plate, the Saturn 4 Ultra 16K is the direct Elegoo comparison. For a tighter budget without the tilt-release speed, the Saturn 4 covers the same screen format.
The resin printer buying guide helps judge whether the speed gain justifies the price gap between these two Saturn 4 models.
Similar printers to compare
Sources and limits
- Source: official Elegoo pages (elegoo.com), checked September 28, 2026. Manufacturer claims, not our measurements.
- How we assess specifications
We have not measured noise, real printing speed, accuracy or reliability, so none of these is rated here.