3D Printing Info

Printer comparison

Anycubic Kobra S1 vs Phrozen Sonic Mini 8K S

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

2 selected · all documented properties

Anycubic Kobra S1 vs Phrozen Sonic Mini 8K S — documented properties and sources
PropertyAnycubic Kobra S1COREXYPhrozen Sonic Mini 8K SRESIN
Identity
BrandAnycubicPhrozen
ClassCOREXYRESIN
Identity & Market
Manufacturer & exact marketed model name (verify the exact product identity first)Anycubic Kobra S1[1]Phrozen Sonic Mini 8K S 7.1" LCD 3D Printer. Manufacturer number 51010040501102[2][3][4]
Release date (announcement and actual shipping)Listed on the Anycubic store from 2 January 2025 (Shopify publish date)[5]Not documented
Street price (USD; dated snapshot per entry)$349.00 with a US plug on store.anycubic.com, Aug 2026, against a compare-at price of $549.00 ($401.00 for the EU plug variant)[5]$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)The CoreXY line, not to be confused with the gantry/bed-slinger Kobra 3, Kobra 4 and Kobra X. Within the S line the Kobra S1 Max is a much bigger machine: 350 mm cube against 250, a 350 C hardened-steel nozzle against 320 C, 65 C active chamber heating that the S1 does not have at all, and 25.7 kg against 9.37 kg. Multicolour is sold separately on both (ACE Pro / ACE 2 Pro)[1][6]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][7]
Physical & Frame
Build volume X×Y×Z (mm) — advertised vs actually usable250 x 250 x 250 mm[1]165 x 72 x 170 mm[2][4]
Machine footprint (mm) & clearance needed (cable/spool overhang)400 x 410 x 490 mm[1]290 x 290 x 430 mm[2][4]
Net weight (kg)9.37 kg net, 20.2 kg packaged[1]10 kg[2][4]
Frame construction & materialNot documentedBlack textured housing with a neon-green plastic cover[2]
Enclosure: open / enclosed; panel material; door/lidFully enclosed - Anycubic's own wording is "Fully Enclosed CoreXY Construction". There is no active chamber heating on the S1 (that is the S1 Max's addition)[1][6]Open-frame MSLA with a UV-blocking plastic cover[2]
Kinematics & Motion Hardware
Kinematics (bedslinger i3 / CoreXY / other)CoreXY (stated outright in Anycubic's specification table)[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 documentedOne linear rail; lead screw (not a ball screw)[2][4]
Speed & Acceleration
Max print speed (claimed, mm/s)600 mm/s maximum print speed (manufacturer claim), 300 mm/s recommended[1]Not documented
Recommended/typical print speed300 mm/s recommended print speed (manufacturer figure)[1]Not documented
Max acceleration (claimed, mm/s²)20000 mm/s2 maximum acceleration, 10000 mm/s2 recommended (manufacturer claims)[1]Not documented
Extruder
Type (direct drive / bowden) & design nameDirect drive ("short distance extrusion")[1]Not documented
Hotend & Nozzle
Hotend design (proprietary/standard; quick-swap mechanism?)Quick-release hotend; 0.4 mm standard nozzle expandable to 0.25, 0.6 and 0.8 mm[1]Not documented
Max nozzle temp claimed AND firmware max temp limit (both values)320 C maximum nozzle temperature[1]Not documented
Heated Bed & Surface
Max bed temp claimed AND firmware limit120 C maximum hotbed temperature on a PEI spring steel build plate - the highest bed ceiling of any Anycubic machine in this file except the S1 Max[1]Not documented
Leveling & Z-Offset
Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe)LeviQ 3.0 auto-levelling with Z-offset, plus area levelling[1]Not documented
Filament Handling & Detection
Filament runout sensor (type, location)Filament detection with auto resume, filament entanglement detection and power-loss resume[1]Not documented
Multi-material/multi-color capability or official upgrade pathMulticolour is sold separately - the ACE Pro / ACE 2 Pro units are not included with the bare S1[1]Not documented
Electronics & Power
Input voltage (110/220 V, switch or auto)Not documented24 V DC, 2 A[4]
Total rated power drawNot documented48 W maximum system power[4]
Firmware & Openness
Firmware base & current version (Klipper fork / Marlin fork / proprietary)Kobra OS, with pressure advance and flow calibration supported[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?4.3-inch capacitive touchscreen[1]3.5-inch touch panel (control panel — not the masking LCD, see W1)[4]
On-device UI capabilities (model preview, per-object controls, etc.)Touchscreen plus slicing software, the Anycubic app and USB (print only); AI spaghetti detection and object-skip supported[1]Not documented
WiFi (band/standard), Ethernet, USB ports, SD/flash-drivePrinter UI, slicing software, Anycubic app, USB (print only)[1]USB only[2][4]
Camera: built-in / optional? Resolution & framerate (verify — marketing often omits real fps)Standard HD camera fitted, but only 480p - lower than the 720p units on the S1 Max, Kobra 4 and Kobra X[1][6][8]Not documented
Materials Support
Officially supported filament listPLA, PETG, TPU, ABS, ASA[1]405 nm photopolymer resin; no closed compatibility list published[2]
Noise & Power Consumption
Noise: claimed dB and independently measured dB (distance/method)46 dB or less in standard mode and 44 dB or less in quiet mode - manufacturer figures with no distance or method stated, so not comparable with an independently measured reading[1]Not documented
Reliability, Support & Ecosystem
Warranty length & support reputation (evidence, not vibes)One year on the complete machine (excluding gifted and second-hand machines), with component warranty periods that vary by part; the period starts on the delivery date and is suspended while a replacement is in transit. Anycubic states it will follow longer local statutory periods where they apply[9]Not documented
Resin & MSLA
Masking LCDNot documented7.1-inch 8K monochrome masking LCD, XY pixel pitch 22 um. Phrozen does not publish the pixel count for this model[2][4]
Light sourceNot documentedLinear projection LED module. Wavelength not published for this model[2][4]
Vertical print speedmm/hNot documentedMax 80 mm/h (manufacturer claim). Phrozen does not state the layer height or resin type the figure assumes[4]
Layer height rangeNot documented0.01-0.30 mm[4]
Release filmNot documentedFEP film — note this is plain FEP, whereas the Sonic Mighty Revo 14K ships nFEP. No rated life published[4][7]

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. Anycubic Kobra S1 product page (Specifications table) store.anycubic.com · 2026-08 · vendor
  2. Phrozen Sonic Mini 8K S technical data table 3djake.com · 2026-08 · vendor
  3. Phrozen US 3D printer collection (live prices and stock) us.phrozen3d.com · 2026-08 · vendor
  4. Phrozen Sonic Mini 8K S 7.1" LCD 3D Printer product page us.phrozen3d.com · 2026-08 · vendor
  5. Anycubic Kobra S1 Shopify product JSON (variant prices and store publish date) store.anycubic.com · 2026-08 · vendor
  6. Anycubic Kobra S1 Max product page (Specifications table) store.anycubic.com · 2026-08 · vendor
  7. Phrozen Sonic Mighty Revo 14K 10.1" LCD 3D Printer product page us.phrozen3d.com · 2026-08 · vendor
  8. Anycubic Kobra 4 product page (Specifications table) store.anycubic.com · 2026-08 · vendor
  9. Anycubic refund and warranty policy store.anycubic.com · 2026-08 · vendor