Elegoo Mars 5 Ultra vs Saturn 4 Ultra 16K

What published reviews say about each, where the two differ, and who each one suits.

Summed up from 15 published reviews

Elegoo

Mars 5 Ultra

The Elegoo Mars 5 Ultra is a beginner-friendly, affordable resin printer with excellent 9K detail, fast tilting-vat printing, and useful safety features, though its small build volume, tricky print removal, limited AI camera, and fiddly maintenance may deter some users.

Best for: Beginners and hobbyists printing detailed miniatures affordably
Skip it if: Need large build volume or mature software ecosystem

PriceToday's price on AmazonView on Amazon

What reviewers say about the Elegoo Mars 5 Ultra

Elegoo

Saturn 4 Ultra 16K

The Elegoo Saturn 4 Ultra 16K delivers exceptional 16K detail, fast tilt-release printing, and smart automation at a competitive price, though it lacks built-in air filtration and early units show firmware quirks.

Best for: Detail-focused hobbyists printing large miniatures and terrain
Skip it if: You need built-in air filtration or guaranteed flawless reliability

PriceToday's price on AmazonView on Amazon

What reviewers say about the Elegoo Saturn 4 Ultra 16K

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Specs side by side

Spec	Elegoo Mars 5 Ultra	Elegoo Saturn 4 Ultra 16K
Wi-Fi	Yes	No
Type	Resin	Resin
Auto levelling	No	No
Multicolour	No	No
Enclosed	No	No

Rows where the two differ come first.

Where only one fits

must-haves: Mars 5 UltraWi-Fi and app

What reviewers like, and what they don't

Elegoo Mars 5 Ultra

High-detail 9K resolution with 18 µm XY 1 2 3
Beginner-friendly auto-leveling and tilt-release mechanism 1 2 5
Fast printing via tilting vat reduces failures 1 2 3
Safety features include resin-level detection and camera 1 2 3
Small build volume limits larger or batch prints 1 2 4
Print removal difficult due to aggressive bed adhesion 1 2
AI camera limited visibility and slicer compatibility 2 3
Cleaning and maintenance fiddly with hidden screws 1 2

Elegoo Saturn 4 Ultra 16K

16K resolution delivers exceptional detail and surface quality 1 2 3 4
Tilt-release mechanism speeds printing and reduces failures 1 2 3 4
Heated resin vat ensures reliable prints in cold environments 1 2 3 4
Auto-leveling and smart sensors simplify setup process 1 2 3 5
AI camera enables remote monitoring and timelapse recording 1 2 3 5
No built-in air filtration requires separate ventilation 1 2 7
Early units show firmware instability and touchscreen quirks 4 5
Live monitoring unavailable in Elegoo slicer ecosystem 2

Ranked in our guides

Guide	Mars 5 Ultra	Saturn 4 Ultra 16K
Best resin 3D printers	#1	#4

Sources

We don't test products ourselves. This page sums up 15 published reviews, read on October 24, 2026; each point above links to the reviews that make it.