Elegoo Saturn 4 Ultra 16K

Finest pixel pitch in this catalogue at 14 µm, achieved by putting a 15120 × 6230 panel behind a plate that is very slightly smaller than the 12K Ultra's — 211.68 mm wide rather than 218.88 mm, which is the trade for the extra pixels. That is the arithmetic worth understanding about resin marketing generally: 16K describes the panel, not the machine, and the number that determines what you can see on the print is the plate width divided by the pixel count. Here that works out to 14 µm across X and 19 µm along Y. Everything else carries over from the 12K Ultra — tilt release, 30 °C heated vat, ACF film, camera. For jewellery, dental models and miniatures where the eye can resolve individual pixels, the step from 19 to 14 µm is the one that shows.

Approx. price: ~$594
Build volume: 5.5 L
Per litre: $108
XY pixel: 14 µm

LAN-only modeproprietary firmware

Best forJewellery, dental and fine miniature work where individual pixels are visible in the result.

Specifications

Build volume: 211.68 × 118.37 × 220 mm
Volume: 5.5 L
Motion: gantry

Optics and handling

LCD resolution: 15120 × 6230 px
LCD size: 10 in
XY resolution: 14 µm
Layer height: from 10 µm
Release film: ACF
Vat capacity: 800 ml
Multi-material: None offered
Firmware: proprietary
LAN-only mode: Yes
Cloud: Optional
Camera: Yes
Assembly: Pre-assembled
Weight: 11 kg
Footprint: 290 × 290 × 480 mm

Features

10-inch 16K panel, 15120 × 6230 — a 14 µm pixel across X
Tilt release and a 30 °C heated vat carried over from the 12K Ultra
ACF release film and a monitoring camera
211.68 × 118.37 × 220 mm plate
800 ml vat

What it does well

Finest pitch here at 14 µm — visibly better than 19 µm on jewellery and fine miniature detail
Keeps the tilt release and heated vat, so the detail does not cost throughput
ACF film and camera included
Same 220 mm height and 800 ml vat as the rest of the Saturn 4 family

Where it gives ground

Plate is 7 mm narrower than the 12K Ultra's — more pixels, slightly less area
Pixels remain non-square: 14 µm across X, 19 µm along Y
Roughly $145 over the 12K Ultra for a difference many prints will not show
Finer pixels mean longer exposure tuning and less forgiving resin settings

The points above are read off published specifications, not from owner reports.

What owners report

Drawn from owner discussions in 3D-printing communities, not from our own testing — this site has no test lab.

What owners like

Owners post results they describe as flawless, and the finest pixel pitch available here is visible in the work when everything is right
It keeps the tilt release and heated vat of the 12K model, so the extra resolution does not cost print speed
Owners take it seriously enough to build out full accessory setups around it, including dedicated exhaust ventilation
The step up in detail over the 12K is real for jewellery-scale and fine miniature work, where individual pixels are visible

Common complaints

One detailed owner account describes serious problems from the start including a resin leak creating a safety hazard, with the manufacturer declining to replace or refund and support described as dismissive
Print adhesion failing specifically in the centre of the plate, reproducibly, appears as an unresolved owner problem that survives exposure changes
It is the most expensive resin printer here while having a slightly smaller plate than the cheaper 12K Ultra
Finer pixels are less forgiving of exposure error, so calibration matters more than on coarser machines
The usual resin overhead applies in full, and owners report spending heavily on ventilation and accessories on top

The 16K Ultra is the finest-resolution machine in this catalogue at 14 µm, and owners producing jewellery-scale and fine miniature work post results that justify it. It keeps the tilt release and heated vat that make the 12K model fast, so the resolution does not cost throughput — and owners invest in it accordingly, building out ventilation and accessory setups around the printer.

Two things temper that. The first is a specific, reproducible technical complaint: prints failing to adhere in the exact centre of the plate, persisting through exposure changes. Centre-specific failure is unusual and points at plate or screen geometry rather than settings, and owners have posted it unresolved.

The second is more serious. The most-read owner account of this machine describes problems from the first week including a resin leak that created a safety hazard, with the manufacturer declining either replacement or refund and support characterised as dismissive and at times aggressive. That is one account rather than a pattern, but it involves a hazard rather than an inconvenience, and it is worth weighing alongside the fact that this is the most expensive resin printer here — and has a slightly smaller plate than the cheaper 12K version.

Questions owners ask

+Is 16K actually better than 12K?

Yes, but less than the badge implies and not for free. The pixel goes from 19 µm to 14 µm, which is visible on jewellery and fine miniature detail. The plate is also 7 mm narrower — that is the trade for the extra pixels. For most miniature work at 28 mm scale, the 12K model is sufficient.

+Why do prints fail in the middle of the plate?

Owners have reported adhesion failing specifically and reproducibly in the plate's exact centre, surviving changes to base-layer exposure. Centre-specific failure is unusual and suggests plate flatness or screen geometry rather than settings. If you see it, raise it with the seller early rather than continuing to tune exposure.

+What is Elegoo's support like on this machine?

Mixed, and the most-read account is bad: an owner reporting serious problems from the first week including a resin leak constituting a safety hazard, with replacement and refund refused and support described as dismissive. Other owners report no trouble at all. Given the price and the nature of that fault, buying somewhere with an independent returns process is prudent.

+What extra equipment do owners buy for it?

Beyond the standard wash station, cure station, alcohol and gloves, owners of this machine commonly add dedicated exhaust ventilation. Resin off-gasses while the vat is open, and a printer at this price generally lives somewhere it will run often, which makes extraction worth doing properly.