3D Printing Info

Printer comparison

ELEGOO Mars 5 Ultra vs UniFormation GKtwo

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

2 selected · all documented properties

ELEGOO Mars 5 Ultra vs UniFormation GKtwo — documented properties and sources
PropertyELEGOO Mars 5 UltraRESINUniFormation GKtwoRESIN
Identity
BrandELEGOOUniFormation
ClassRESINRESIN
Identity & Market
Manufacturer & exact marketed model name (verify the exact product identity first)ELEGOO Mars 5 Ultra. Elegoo's product handle is mars-5-ultra-9k-7inch-monochrome-lcd-resin-3d-printer[1][2][3]UniFormation GKtwo 10.3" 8K Resin Printer[4][5]
Street price (USD; dated snapshot per entry)$269.00 in Elegoo's live US product feed, in stock, checked Aug 2026. The Mars 5 Series collection page rendered $259.00 against a $338.00 compare-at price on the same day, so the two Elegoo surfaces disagree by $10[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)Not a trim of the Mars 5 — a different imaging stack and a different release mechanism: 7-inch 9K LCD and 18 um pixels vs 6.6-inch 4K and 35 um, 150 vs 70 mm/h, tilt-release vs straight lift, an AI camera, and Wi-Fi added. Seven bundle SKUs pair it with Mercury Plus V2.0/V3.0 or Mercury XS at $363-$432[6][1][2][3]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 usable153.36 x 77.76 x 165 mm[1]228 x 128 x 245 mm[4][5]
Machine footprint (mm) & clearance needed (cable/spool overhang)260 x 268 x 451.5 mm[1]350 x 315 x 455 mm[4][5]
Net weight (kg)Approximately 8.8 kg[1]20 kg packaged (UniFormation publishes package weight, not net weight)[4][5]
Enclosure: open / enclosed; panel material; door/lidOpen-frame MSLA with a removable UV-blocking cover[1]Open-frame MSLA with a UV-blocking cover[4][5]
Kinematics & Motion Hardware
Kinematics (bedslinger i3 / CoreXY / other)MSLA with tilt-release: the resin tank tilts after each layer to peel the part rather than pulling straight up. Single Z axis[1]MSLA — photocuring LCD, single Z axis, straight-lift peel[4][5]
Leveling & Z-Offset
Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe)Automatic levelling, one click, via an intelligent mechanical sensor. One-Click Self-Check routine. Alarms for resin shortage, residue detection and levelling failure[1]Not documented
Electronics & Power
Input voltage (110/220 V, switch or auto)100-240 V, 50/60 Hz, 24 V 3 A[1]110/220 V[4][5]
Firmware & Openness
Firmware base & current version (Klipper fork / Marlin fork / proprietary)Not named by Elegoo. Supported slicer is CHITUBOX[1]Not named. Slicers: CHITUBOX, the GKtwo slicer, and Lychee. File format STL[4][5]
Connectivity, UI & Camera
Display: size, type, touch?4.0-inch capacitive touchscreen (control panel — not the masking LCD, see W1)[1]5-inch touchscreen (control panel — not the masking LCD, see W1)[4][5]
WiFi (band/standard), Ethernet, USB ports, SD/flash-driveUSB and Wi-Fi[1]USB file transfer[4][5]
Camera: built-in / optional? Resolution & framerate (verify — marketing often omits real fps)AI camera fitted; Elegoo does not publish its resolution for this model[1]Not documented
Camera features: live monitor, timelapse, AI failure detection (spaghetti detection) — how real is it?AI camera detects empty build plates and print errors[1]Not documented
Materials Support
Officially supported filament list405 nm photopolymer resin. No compatibility list published on this listing[1]402.5-405 nm photopolymer resin. No closed compatibility list published[4][5]
Safety
Firmware safety limits (max temp cutoffs — exact values)Overheating protection activates above 80 °C[1]Not documented
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-inch 9K monochrome masking LCD, 8520 x 4320 px, XY pixel pitch 18 x 18 um (manufacturer specification)[1][3]10.3-inch masking LCD, 7680 x 4320 px (8K), XY pixel pitch 29.6 um (manufacturer specification)[4][5]
Light source25-LED COB light source emitting a 405 nm UV beam (manufacturer specification)[1]Photocuring LCD light engine at 402.5-405 nm. UniFormation does not publish the LED count or optical design on this page[4][5]
Light uniformity & intensity92% light uniformity claimed by Elegoo. No intensity figure published, and no independent measurement[1]Not documented
Vertical print speedmm/h150 mm/h maximum, which Elegoo attributes to the tilt-release mechanism (manufacturer claim). Elegoo also offers switchable slow and fast print modes but does not state the layer height the figure assumes[1]Not documented
Layer exposure times1.5-3 s layer cure time (manufacturer figure; layer height not stated). Sortable value is the midpoint[1]2-3 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 rangeNot documented0.03, 0.05 and 0.1 mm (three discrete settings, not a continuous range)[4][5]
LCD life & replaceabilityMasking LCD protected by a scratch-resistant tempered 9H glass cover that also guards against resin leakage. Elegoo publishes no rated screen life in hours and does not state whether the user can replace the LCD[1]Not documented
Resin vat & feedingResin tank supplied with the machine; resin-shortage and residue-detection alarms fitted. Capacity not published; no auto-refill[1]Resin 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. Elegoo Mars 5 Ultra product page (technical data and description) 3djake.com · 2026-08 · vendor
  2. ELEGOO Mars 5 Series collection (live US prices) us.elegoo.com · 2026-08 · vendor
  3. ELEGOO Mars 5 Series live product feed us.elegoo.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. Elegoo Mars 5 product page (technical data and description) 3djake.com · 2026-08 · vendor