3D Printing Info

Printer comparison

ELEGOO Saturn 4 Ultra 16K vs Phrozen Sonic Mini 8K S

Compare hardware, build volume, printing specifications, dated prices and sources.

ELEGOO Saturn 4 Ultra 16K guidePhrozen Sonic Mini 8K S guide

2 selected · all documented properties

Open these two in the interactive comparisonMore ELEGOO Saturn 4 Ultra 16K comparisonsMore Phrozen Sonic Mini 8K S comparisons
ELEGOO Saturn 4 Ultra 16K vs Phrozen Sonic Mini 8K S — documented properties and sources
PropertyELEGOO Saturn 4 Ultra 16KRESINPhrozen Sonic Mini 8K SRESIN
Identity
BrandELEGOOPhrozen
ClassRESINRESIN
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]Phrozen Sonic Mini 8K S 7.1" LCD 3D Printer. Manufacturer number 51010040501102[3][4][5]
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]$270.00 on us.phrozen3d.com, backordered with an end-of-September ETA, checked Aug 2026. The collection page rendered it as unavailable on the same day[5][4]
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]Phrozen's 7.1-inch line is easy to confuse: the Sonic Mini 8K S ($270) sits beside the older Sonic Mini 8K ($340, sold out) and the 5.5-inch Sonic Mini ($129.99). The 10.1-inch Sonic Mighty family is a different size class entirely. The 8K S is the only one of the group with a single linear rail and a lead screw rather than a ball screw[4][3][5][6]
Physical & Frame
Build volume X×Y×Z (mm) — advertised vs actually usable211.68 x 118.37 x 220 mm[1]165 x 72 x 170 mm[3][5]
Machine footprint (mm) & clearance needed (cable/spool overhang)327.4 x 329.2 x 548 mm[1]290 x 290 x 430 mm[3][5]
Net weight (kg)Not documented10 kg[3][5]
Frame construction & materialMetal housing with a flip-up cover and a drip guard[1]Black textured housing with a neon-green plastic cover[3]
Enclosure: open / enclosed; panel material; door/lidFlip-up lid (Elegoo's own naming) over an open frame; UV-blocking cover[1]Open-frame MSLA with a UV-blocking plastic cover[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]MSLA, single Z axis on one linear rail with a lead screw, straight-lift peel[3][5]
X-axis guide type (rods / linear rails / V-wheels; size)Not documentedOne linear rail; lead screw (not a ball screw)[3][5]
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
Input voltage (110/220 V, switch or auto)100-240 V, 50/60 Hz, 24 V 6 A[1]24 V DC, 2 A[5]
Total rated power drawNot documented48 W maximum system power[5]
Firmware & Openness
Firmware base & current version (Klipper fork / Marlin fork / proprietary)Elegoo EL3D-4.0 system. Slicer is CHITUBOX[1]Not named by Phrozen. Native file format .PRZ; compatible slicers CHITUBOX, Lychee and VoxelDance Tango[3][5]
Connectivity, UI & Camera
Display: size, type, touch?4-inch capacitive touchscreen (control panel — not the masking LCD, see W1)[1]3.5-inch touch panel (control panel — not the masking LCD, see W1)[5]
WiFi (band/standard), Ethernet, USB ports, SD/flash-driveUSB and Wi-Fi, with WLAN file transfer[1]USB only[3][5]
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
Materials Support
Officially supported filament list405 nm photopolymer resin; the heated tank is aimed at high-viscosity and high-speed resins. No closed compatibility list published[1]405 nm photopolymer resin; no closed compatibility list published[3]
Resin & MSLA
Masking LCD10-inch 16K monochrome masking LCD, 15120 x 6230 px, XY pixel pitch 14 x 19 um (manufacturer specification)[1][2]7.1-inch 8K monochrome masking LCD, XY pixel pitch 22 um. Phrozen does not publish the pixel count for this model[3][5]
Light sourceCOB light source with a Fresnel collimating lens[1]Linear projection LED module. Wavelength not published for this model[3][5]
Light uniformity & intensityLight 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/hUp to 150 mm/h (manufacturer claim). Elegoo does not state the layer height or resin type the figure assumes[1]Max 80 mm/h (manufacturer claim). Phrozen does not state the layer height or resin type the figure assumes[5]
Layer height rangeNot documented0.01-0.30 mm[5]
Release filmPFA release film. No rated life published[1]FEP film — note this is plain FEP, whereas the Sonic Mighty Revo 14K ships nFEP. No rated life published[5][6]
LCD life & replaceabilityMasking 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 & feedingReplaceable 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

  1. Elegoo Saturn 4 Ultra 16K product page (technical data and description) 3djake.com · 2026-08 · vendor
  2. Elegoo Saturn 4 Ultra 16K live Shopify product JSON us.elegoo.com · 2026-08 · vendor
  3. Phrozen Sonic Mini 8K S technical data table 3djake.com · 2026-08 · vendor
  4. Phrozen US 3D printer collection (live prices and stock) us.phrozen3d.com · 2026-08 · vendor
  5. Phrozen Sonic Mini 8K S 7.1" LCD 3D Printer product page us.phrozen3d.com · 2026-08 · vendor
  6. Phrozen Sonic Mighty Revo 14K 10.1" LCD 3D Printer product page us.phrozen3d.com · 2026-08 · vendor