3D Printing Info

Printer comparison

Phrozen Sonic Mini 8K S vs UniFormation GKtwo

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

2 selected · all documented properties

Phrozen Sonic Mini 8K S vs UniFormation GKtwo — documented properties and sources
PropertyPhrozen Sonic Mini 8K SRESINUniFormation GKtwoRESIN
Identity
BrandPhrozenUniFormation
ClassRESINRESIN
Identity & Market
Manufacturer & exact marketed model name (verify the exact product identity first)Phrozen Sonic Mini 8K S 7.1" LCD 3D Printer. Manufacturer number 51010040501102[1][2][3]UniFormation GKtwo 10.3" 8K Resin Printer[4][5]
Street price (USD; dated snapshot per entry)$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[3][2]$749.99 on uniformation3d.com but marked Sold out, checked Aug 2026 (the page shows a compare-at price of $0.00, i.e. none set)[4]
Variants & sibling models — and how to tell them apart (spec-contamination risk)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[2][1][3][6]UniFormation lists GKtwo variants by region and bundle (GKtwo ALL, GKtwo ALL UK) rather than by hardware, so the hardware specification is common; what changes is what ships in the box. Not to be confused with the earlier GKone[4]
Physical & Frame
Build volume X×Y×Z (mm) — advertised vs actually usable165 x 72 x 170 mm[1][3]228 x 128 x 245 mm[4][5]
Machine footprint (mm) & clearance needed (cable/spool overhang)290 x 290 x 430 mm[1][3]350 x 315 x 455 mm[4][5]
Net weight (kg)10 kg[1][3]20 kg packaged (UniFormation publishes package weight, not net weight)[4][5]
Frame construction & materialBlack textured housing with a neon-green plastic cover[1]Not documented
Enclosure: open / enclosed; panel material; door/lidOpen-frame MSLA with a UV-blocking plastic cover[1]Open-frame MSLA with a UV-blocking cover[4][5]
Kinematics & Motion Hardware
Kinematics (bedslinger i3 / CoreXY / other)MSLA, single Z axis on one linear rail with a lead screw, straight-lift peel[1][3]MSLA — photocuring LCD, single Z axis, straight-lift peel[4][5]
X-axis guide type (rods / linear rails / V-wheels; size)One linear rail; lead screw (not a ball screw)[1][3]Not documented
Electronics & Power
Input voltage (110/220 V, switch or auto)24 V DC, 2 A[3]110/220 V[4][5]
Total rated power draw48 W maximum system power[3]Not documented
Firmware & Openness
Firmware base & current version (Klipper fork / Marlin fork / proprietary)Not named by Phrozen. Native file format .PRZ; compatible slicers CHITUBOX, Lychee and VoxelDance Tango[1][3]Not named. Slicers: CHITUBOX, the GKtwo slicer, and Lychee. File format STL[4][5]
Connectivity, UI & Camera
Display: size, type, touch?3.5-inch touch panel (control panel — not the masking LCD, see W1)[3]5-inch touchscreen (control panel — not the masking LCD, see W1)[4][5]
WiFi (band/standard), Ethernet, USB ports, SD/flash-driveUSB only[1][3]USB file transfer[4][5]
Materials Support
Officially supported filament list405 nm photopolymer resin; no closed compatibility list published[1]402.5-405 nm photopolymer resin. No closed compatibility list published[4][5]
Independently Measured Performance
Dimensional accuracy measurements (third-party, with numbers)Not documentedPrinting tolerance +/-0.1 mm for lengths up to 100 mm, +/-0.1% beyond — a manufacturer specification, not an independent measurement[4]
Resin & MSLA
Masking LCD7.1-inch 8K monochrome masking LCD, XY pixel pitch 22 um. Phrozen does not publish the pixel count for this model[1][3]10.3-inch masking LCD, 7680 x 4320 px (8K), XY pixel pitch 29.6 um (manufacturer specification)[4][5]
Light sourceLinear projection LED module. Wavelength not published for this model[1][3]Photocuring LCD light engine at 402.5-405 nm. UniFormation does not publish the LED count or optical design on this page[4][5]
Vertical print speedmm/hMax 80 mm/h (manufacturer claim). Phrozen does not state the layer height or resin type the figure assumes[3]Not documented
Layer exposure timesNot documented2-3 s per layer at 0.05 mm layer height (manufacturer figure — one of the few makers here that states the layer height its exposure figure assumes). Sortable value is the midpoint[4][5]
Layer height range0.01-0.30 mm[3]0.03, 0.05 and 0.1 mm (three discrete settings, not a continuous range)[4][5]
Release filmFEP film — note this is plain FEP, whereas the Sonic Mighty Revo 14K ships nFEP. No rated life published[3][6]Not documented
Resin vat & feedingNot documentedResin vat capacity 0.7 kg, with built-in resin heating: UniFormation quotes warming to 95 F (35 C) in 8 minutes from 50 F. No auto-refill and no level sensing published[4][5]
Fume extractionNot documentedBuilt-in odour filter[4][5]

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. Phrozen Sonic Mini 8K S technical data table 3djake.com · 2026-08 · vendor
  2. Phrozen US 3D printer collection (live prices and stock) us.phrozen3d.com · 2026-08 · vendor
  3. Phrozen Sonic Mini 8K S 7.1" LCD 3D Printer product page us.phrozen3d.com · 2026-08 · vendor
  4. UniFormation GKtwo 10.3" 8K resin printer product page uniformation3d.com · 2026-08 · vendor
  5. UniFormation GKtwo technical data table 3djake.com · 2026-08 · vendor
  6. Phrozen Sonic Mighty Revo 14K 10.1" LCD 3D Printer product page us.phrozen3d.com · 2026-08 · vendor