3D Printing InfoPrinter comparison
ELEGOO Saturn 4 Ultra 16K vs Positron V3.2
Compare hardware, build volume, printing specifications, dated prices and sources.
2 selected · all documented properties
Open these two in the interactive comparisonMore ELEGOO Saturn 4 Ultra 16K comparisonsMore Positron V3.2 comparisons
| Property | ELEGOO Saturn 4 Ultra 16KRESIN | Positron V3.2COREXY |
|---|---|---|
| Identity | ||
| Brand | ELEGOO | Positron3D |
| Class | RESIN | COREXY |
| Identity & Market | ||
| Manufacturer & exact marketed model name (verify the exact product identity first) | Elegoo Saturn 4 Ultra 16K. Elegoo's product handle is saturn-4-ultra-16k-10inch-monochrome-lcd-resin-3d-printer. 3DJake item number ELG-50.101.038300[1][2] | LDO Positron v3.2 3D Printer Kit, revision v3.2 Rev A[3] |
| Street price (USD; dated snapshot per entry) | $649.99 in us.elegoo.com's live Shopify product JSON, in stock, with compare_at_price also $649.99 — no discount active at the time of checking (Aug 2026)[2] | Not documented |
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | Distinct from the earlier Saturn 4 Ultra (12K); the 16K carries a 15120 x 6230 masking LCD with 14 x 19 um pixels. Elegoo also sells it bundled with a Mercury Plus V2.0 wash/cure station and as a pre-owned SKU, neither of which is the printer-only price[1][2] | The defining trait is the inverted geometry: the print head is below the bed and the machine prints upside down. Sold as a self-assembly kit; the complete printed-parts set is a separate purchase. A hard storage case is included[3] |
| Physical & Frame | ||
| Build volume X×Y×Z (mm) — advertised vs actually usable | 211.68 x 118.37 x 220 mm[1] | 180 x 180 x 165 mm[3] |
| Machine footprint (mm) & clearance needed (cable/spool overhang) | 327.4 x 329.2 x 548 mm[1] | 200 x 200 x 70 mm folded, 200 x 200 x 270 mm unfolded[3] |
| Net weight (kg) | Not documented | 3 kg net; 5.5 kg with the hard case[3] |
| Frame construction & material | Metal housing with a flip-up cover and a drip guard[1] | Folding frame designed to fit in a filament box; supplied with a black hard case[3] |
| Enclosure: open / enclosed; panel material; door/lid | Flip-up lid (Elegoo's own naming) over an open frame; UV-blocking cover[1] | Open frame[3] |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | MSLA with tilt-release: the vat tilts to peel each layer rather than pulling straight up. Elegoo claims the mechanism cuts curing time by 25%. Single Z axis, Z precision 0.02 mm[1] | CoreXY, inverted — the machine prints upside down[3] |
| Speed & Acceleration | ||
| Max print speed (claimed, mm/s) | Not documented | 250 mm/s maximum print speed (manufacturer claim)[3] |
| Max acceleration (claimed, mm/s²) | Not documented | 8,000 mm/s2 (manufacturer claim)[3] |
| Extruder | ||
| Type (direct drive / bowden) & design name | Not documented | Bowden-style, single extrusion[3] |
| Hotend & Nozzle | ||
| Hotend design (proprietary/standard; quick-swap mechanism?) | Not documented | PS plated-copper nozzle, 0.4 mm[3] |
| Max nozzle temp claimed AND firmware max temp limit (both values) | Not documented | 260 °C maximum (manufacturer claim)[3] |
| Stock nozzle material (brass / hardened steel / plated copper / composite tip) | Not documented | Plated copper[3] |
| Heated Bed & Surface | ||
| Max bed temp claimed AND firmware limit | Not documented | 85 °C maximum bed temperature — the lowest in this group, and the reason the material list stops at PETG[3] |
| Bed surface (material, texture, coating), single/double-sided | Not documented | Heated removable ITO glass bed[3] |
| Leveling & Z-Offset | ||
| Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe) | Automatic levelling, plus intelligent mechanical sensor alarms[1] | Not documented |
| Electronics & Power | ||
| Mainboard model & MCU (exact chip markings if teardowns exist) | Not documented | LDO Positron mainboard[3] |
| PSU (brand, wattage, rail voltage) | Not documented | DC 24 V, 200 W[3] |
| Input voltage (110/220 V, switch or auto) | 100-240 V, 50/60 Hz, 24 V 6 A[1] | Not documented |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | Elegoo EL3D-4.0 system. Slicer is CHITUBOX[1] | Klipper[3] |
| Connectivity, UI & Camera | ||
| Display: size, type, touch? | 4-inch capacitive touchscreen (control panel — not the masking LCD, see W1)[1] | 3.5-inch LCD touchscreen[3] |
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | USB and Wi-Fi, with WLAN file transfer[1] | Wi-Fi, USB, Ethernet[3] |
| Camera: built-in / optional? Resolution & framerate (verify — marketing often omits real fps) | AI camera, 1920 x 1080[1] | Not documented |
| Camera features: live monitor, timelapse, AI failure detection (spaghetti detection) — how real is it? | AI camera with print-failure detection[1] | Not documented |
| Calibration Routines & QoL | ||
| Assembly level & time from unbox to first print | Not documented | Self-assembly kit, manufactured in China[3] |
| Materials Support | ||
| Officially supported filament list | 405 nm photopolymer resin; the heated tank is aimed at high-viscosity and high-speed resins. No closed compatibility list published[1] | PLA and PETG only, per the manufacturer[3] |
| Resin & MSLA | ||
| Masking LCD | 10-inch 16K monochrome masking LCD, 15120 x 6230 px, XY pixel pitch 14 x 19 um (manufacturer specification)[1][2] | Not documented |
| Light source | COB light source with a Fresnel collimating lens[1] | Not documented |
| Light uniformity & intensity | Light energy at the plate quoted as 5 mW/cm2, i.e. 5000 uW/cm2 (manufacturer claim, attributed to the tilt-release and Fresnel optics). No uniformity percentage published and no independent measurement[1] | Not documented |
| Vertical print speedmm/h | Up to 150 mm/h (manufacturer claim). Elegoo does not state the layer height or resin type the figure assumes[1] | Not documented |
| Release film | PFA release film. No rated life published[1] | Not documented |
| LCD life & replaceability | Masking LCD shielded by tempered 9H protective glass. Elegoo publishes no rated screen life in hours and does not state user replaceability[1] | Not documented |
| Resin vat & feeding | Replaceable resin vat with a dual pour spout and a drip guard. Heated tank with automatic temperature measurement: Elegoo states resin reaches 25 C in 26 minutes from a 5 C ambient at 50% humidity (manufacturer figure). Capacity not published; no auto-refill[1] | Not documented |
Manufacturer claims, independent measurements, packages and test conditions retain their source wording. FDM linear speed and resin vertical speed use different units and are not directly comparable. Unknown values are marked “Not documented”. Prices and source dates remain historical snapshots; check the linked guide for product details. Differences highlight text, not a universal winner.
Sources for this comparison
- Elegoo Saturn 4 Ultra 16K product page (technical data and description) 3djake.com · 2026-08 · vendor
- Elegoo Saturn 4 Ultra 16K live Shopify product JSON us.elegoo.com · 2026-08 · vendor
- LDO Positron v3.2 3D Printer Kit matterhackers.com · 2026-08 · vendor