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Elegoo Mars 2 vs Mars 3

Last Updated: January 12th, 2022

The Elegoo Mars 3 is the successor of the Mars 2 and the direct competitor to the Mono 4K, Mini 4K, and Mini 8K. The Mars 3 has slightly more build volume and XY-resolution than the Mars 2. We would recommend going for the Mars 3 only if you have tight tolerances, are jewelry casting, making commercial items, or just have splash cash.

Elegoo Mars 2

$170
(phasing out)
Resolution: 0.05mm (XY) 0.01mm (Z)

6.1" 2k Screen ($50)
Print Volume: 129mm (L) 80mm (W) 150mm (H)

Mars 2 vs Mars 2 Pro

Elegoo Mars 2
ElegooAmazonAliExpress

Elegoo Mars 3

$220

Resolution: 0.035mm (XY) 0.01mm (Z)

6.6" 4k Screen ($50)
Print Volume: 143mm (L) 89mm (W) 175mm (H)

Mars 3 vs Mars 2

Elegoo Mars 3
ElegooAmazonMatterHackers

Elegoo Mars 3 and Mars 2

  • Both printers carry monochrome screens which bring energy, cure time, and lifetime improvements over color LCDs.
  • Elegoo often has cheaper replacement parts compared to the other major brands, such as Anycubic and Phrozen.
  • Both printers run Chitu boards and are locked into their software, but thankfully third parties, such as Lychee, have started adding all of the Chitu board printers. To avoid Chitu boards you would have to pick up an Anycubic resin printer or Prusa SL1S.
  • Elegoo has a fairly reliable track record in terms of customer service, but it is difficult to escape the potential for spotty service until you exit the budget realm (Formlabs, Prusa etc). Thus, if you can order the printer on amazon, you will have the amazon delivery speed plus the return policy in the event something goes wrong.

Elegoo Mars 3

  • The Mars 3 sports a small increase in build dimensions over the Mars 2 - 129x80x150mm to 143x89x175mm.
  • The Mars 3 does receive an increase in XY resolution from 0.05mm to 0.035mm. Visually, there is little difference (youtube video example), but the dot pitch should provide increased dimensional accuracy over the Mars 2. This can be valuable for applications such as jewelry but  do keep in mind that factors such as resin shrinkage and settings can be just as important.
  • The Mars 3 comes with a free year of Chitubox Pro.
  • The vat on the Mars 3 is aluminum by default.

Elegoo Mars 2

  • The Mars 2 comes with a plastic vat by default, but this doesn't affect print quality. If you desire aluminum instead, pick up a Sovol vat.
  • Why not the Mars 2 Pro? The Pro version does come with slightly extra build height, and this should be its only selling point. The plastic vat on the regular Mars 2 works perfect fine and Sovol has cheap aluminum vats anyway. The 'air filter' on the Mars 2 Pro is 13.6 gram brick of compressed carbon that requires taking the entire printer apart to replace it (elegoo's video). Instead, you can download the print files for our P Mini air cleaner for free.

To compare resin printers, browse resin, and get equipment inspiration visit our Ultimate Resin Guide.

To compare FDM printers via an interactive table, side-by-sides, and in-depth articles.

Application & Safety FAQ answers common questions about resin.

Ventilation Simulations has animations for common DIY venting setups, and Heating Resin Printers during winter provides data for specific heat sources.

Our Resin Print Settings Table has associated images, mixes, and does a resin giveaway.

To browse resin properties and find your ideal strong, durable, flexible, or high-temp resin visit our Resin Properties Table. To find properties of filaments, visit our FDM Properties Table.

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