3D Printing InfoPrinter comparison
Formlabs Form 4L vs Phrozen Sonic Mini 8K S
Compare hardware, build volume, printing specifications, dated prices and sources.
2 selected · all documented properties
Open these two in the interactive comparisonMore Formlabs Form 4L comparisonsMore Phrozen Sonic Mini 8K S comparisons
| Property | Formlabs Form 4LRESIN | Phrozen Sonic Mini 8K SRESIN |
|---|---|---|
| Identity | ||
| Brand | Formlabs | Phrozen |
| Class | RESIN | RESIN |
| Identity & Market | ||
| Manufacturer & exact marketed model name (verify the exact product identity first) | Formlabs Form 4L[1] | Phrozen Sonic Mini 8K S 7.1" LCD 3D Printer. Manufacturer number 51010040501102[2][3][4] |
| Street price (USD; dated snapshot per entry) | Not documented | $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[4][3] |
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | Same Low Force Display engine as the Form 4 but a different machine on every physical figure: 353 x 196 x 350 mm vs 200 x 125 x 210, 46 um vs 50 um pixels, 58.5 kg vs 18.3 kg, 900 W vs 480 W, two resin cartridges vs one. Formlabs lists Basic, Premium and Complete packages, whose prices are not printer-only prices, and no printer-only USD figure was found on a live listing[1] | 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[3][2][4][5] |
| Physical & Frame | ||
| Build volume X×Y×Z (mm) — advertised vs actually usable | 353 x 196 x 350 mm (Formlabs quotes 24.2 litres)[1] | 165 x 72 x 170 mm[2][4] |
| Machine footprint (mm) & clearance needed (cable/spool overhang) | 664 x 528 x 794 mm[1] | 290 x 290 x 430 mm[2][4] |
| Net weight (kg) | 58.5 kg[1] | 10 kg[2][4] |
| Frame construction & material | Not documented | Black textured housing with a neon-green plastic cover[2] |
| Enclosure: open / enclosed; panel material; door/lid | Enclosed cabinet with a UV-blocking cover. Operating temperature 18-28 C[1] | Open-frame MSLA with a UV-blocking plastic cover[2] |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | Masked stereolithography (MSLA) with the Low Force Display engine; straight-lift peel[1] | MSLA, single Z axis on one linear rail with a lead screw, straight-lift peel[2][4] |
| X-axis guide type (rods / linear rails / V-wheels; size) | Not documented | One linear rail; lead screw (not a ball screw)[2][4] |
| Electronics & Power | ||
| Input voltage (110/220 V, switch or auto) | 100-240 VAC, 9 A, 50/60 Hz, 900 W[1] | 24 V DC, 2 A[4] |
| Total rated power draw | 900 W[1] | 48 W maximum system power[4] |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | Proprietary; print preparation is PreForm[1] | Not named by Phrozen. Native file format .PRZ; compatible slicers CHITUBOX, Lychee and VoxelDance Tango[2][4] |
| Connectivity, UI & Camera | ||
| Display: size, type, touch? | 7-inch interactive touchscreen, 1280 x 800 (control panel — not the masking LCD, see W1)[1] | 3.5-inch touch panel (control panel — not the masking LCD, see W1)[4] |
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | Dual-band Wi-Fi, Gigabit Ethernet, USB-C 2.0[1] | USB only[2][4] |
| Materials Support | ||
| Officially supported filament list | Formlabs resin range as for the Form 4; biocompatible materials require a B-series machine[1] | 405 nm photopolymer resin; no closed compatibility list published[2] |
| Independently Measured Performance | ||
| Dimensional accuracy measurements (third-party, with numbers) | XY dimensional tolerance +/-0.15% — a manufacturer specification[1] | Not documented |
| Resin & MSLA | ||
| Masking LCD | Low Force Display masking LCD with a 46 um pixel size. Formlabs does not publish the screen diagonal or pixel count[1] | 7.1-inch 8K monochrome masking LCD, XY pixel pitch 22 um. Phrozen does not publish the pixel count for this model[2][4] |
| Light source | Backlight unit with uniform-wavelength LEDs behind collimating lenses, with integrated cooling[1] | Linear projection LED module. Wavelength not published for this model[2][4] |
| Vertical print speedmm/h | Not documented | Max 80 mm/h (manufacturer claim). Phrozen does not state the layer height or resin type the figure assumes[4] |
| Layer height range | 25-200 um[1] | 0.01-0.30 mm[4] |
| Release film | Not documented | FEP film — note this is plain FEP, whereas the Sonic Mighty Revo 14K ships nFEP. No rated life published[4][5] |
| Resin vat & feeding | Two next-generation resin cartridges. No vat capacity published[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
- Formlabs resin printer technical specifications (Form 4 / 4B / 4L) formlabs.com · 2026-08 · vendor
- Phrozen Sonic Mini 8K S technical data table 3djake.com · 2026-08 · vendor
- Phrozen US 3D printer collection (live prices and stock) us.phrozen3d.com · 2026-08 · vendor
- Phrozen Sonic Mini 8K S 7.1" LCD 3D Printer product page us.phrozen3d.com · 2026-08 · vendor
- Phrozen Sonic Mighty Revo 14K 10.1" LCD 3D Printer product page us.phrozen3d.com · 2026-08 · vendor