What changed since our first look

The Jupiter 2 is real now

When we first pitted these two against each other, the Jupiter 2 was still a RAPID+TCT reveal with no price and no ship date. That's no longer true. Elegoo officially launched it on April 15, 2026, the early-bird window has closed, and pricing and specs are locked. A few things are worth flagging up top before the head-to-head:

The numbers

Specs, head to head

Resolution

Same "16K," different reality

Both machines carry the 16K badge and the identical 15,120 × 6,230 pixel count — but the pixels live on very different screens. The Saturn 4 Ultra 16K packs them onto a 10-inch panel, landing at a tighter 14 × 19 µm pixel pitch. The Jupiter 2 spreads the same count across a 14-inch panel, arriving at 20 × 26 µm. Both are exceptional; the Saturn simply wins on raw per-pixel sharpness.

For miniatures under 50 mm, the gap between 14 and 20 µm is effectively invisible to the naked eye — the same thing reviewers note when comparing 12K and 16K on small figures. Where it earns its keep: large display busts, fine jewelry, dental-style surfaces, and embossed text under a millimeter, viewed up close or under magnification.

Build volume

Not even close

This is where the Jupiter 2 runs away with it. At 302 × 162 × 300 mm it holds about 14.6 liters of build space against the Saturn's roughly 5.5 liters — close to 2.7× the volume, on a footprint nearly double the size. In practical terms that's full-scale helmets, large prop weapons, life-size busts, or dozens of miniatures batched in a single run without slicing models into parts.

One honest caveat the spec sheet buries: on full-height Jupiter 2 prints, you have to remove the resin tank to lift the finished model out. It's a minor workflow step, but worth knowing if you picture grabbing tall prints straight off the plate. If you keep bumping the Saturn's ceiling, though, the Jupiter is the obvious answer — and our large-format resin printer guide puts it in context against the giants.

Speed

The Saturn sprints, the Jupiter strides

At up to 150 mm/h, the Saturn 4 Ultra 16K is genuinely quick — its tilt-release mechanism angles the vat instead of pulling straight up, dropping peel forces dramatically and letting it run fast without deforming models. Elegoo rates the release film for around 60,000 cycles, and reviewers consistently report very low failure rates across a film's life.

The Jupiter 2 tops out at 70 mm/h — reasonable for a machine this size, but it'll take roughly four-plus hours to reach full build height versus the Saturn's sub-two-hour sprint. If throughput is your priority and you don't need the volume, that's a real trade-off.

Resin management

Where the Jupiter changes the game

The Jupiter 2's standout feature is its two-way pump and 2 kg bottle: it auto-feeds resin during printing and, when you're done, pumps the leftover back into the bottle. Elegoo bills this auto-recycling as a first for its lineup — no scooping, no spills, no guesswork on how much to pour. For long or back-to-back sessions, it's a genuine workflow upgrade.

The Saturn 4 Ultra 16K is no slouch on smarts — real-time shortage alarms, residue detection to protect the LCD, and the same 30 °C heated vat for consistent flow — but it stops short of active recycling. When the job's done, you're still on pouring-and-filtering duty.

Software — the catch

Mind the slicer

This is the update that didn't exist when the Jupiter 2 was just a reveal. As of launch, the Jupiter 2 slices only in Elegoo's own SatelLite — ChituBox support is "coming later" per Elegoo, but it isn't here yet. The Saturn 4 Ultra 16K supports both SatelLite and ChituBox out of the gate.

SatelLite is a capable slicer with strong auto-support and free pro features, so this is hardly a dealbreaker. But if your entire profile library, muscle memory, and shared community settings live in ChituBox, factor in the switch — or wait for the promised update before you commit.

The verdict

Who should buy which

Bottom line: the Saturn 4 Ultra 16K remains the best mid-size resin printer most people should buy — refined, fast, sharp, and a fraction of the price. The Jupiter 2 isn't trying to beat it at that game; it's playing a different one built around volume, smart resin handling, and serviceability. At 16K, both deliver stunning detail. The real question is how big you print.

From our bench

We run one of these daily

Going deeper on the Saturn? We've written the complete owner's guide, a fix for why multi-prints fail on a full plate, and where both machines land in our best resin printers of 2026 roundup. Whichever you choose, budget for a matching wash & cure station sized to the build volume.

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