Elegoo
Saturn 4
Based on 150 Reddit mentions
$379.99
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Most discussed features
Sentiment summary across the product areas Reddit users mention most.
Reddit mentions
Original Reddit posts and comments behind this analysis.
Resin printing "arms race" over?
Same as before. Expect 12 months between cycles. This year was odd, printers got released on a shorter cycle. The Saturn 4 Ultra 16K was probably supposed to be the Saturn 5, but Elegoo released it early (only 7-8 months after the Saturn 4/4 Ultra). Probably because Uniformation was releasing the 16
...stickninjazero in r/resinprinting
August 19, 2025 10:10 PM
40
I have my own (mini) Rocky! 🥰
Thank you! I currently have an Elegoo Saturn 4 Ultra printer, which I recently upgraded to from a much smaller Elegoo Mars (first generation). It's been pretty much foolproof since I bought it, once I'd manually levelled it. I also have the Elegoo Mercury Plus v3 wash and cure station, which has hug
...JonDixon1957 in r/ProjectHailMary
April 14, 2026 6:05 PM
12
Replacing FEP with ACF
ACF has it's downsides, namely causing fine vertical lines on smooth surfaces. There was such a backlash against it, Elegoo stopped using ACF on new printers. No Mars 5 or Saturn 4 model uses ACF. nFEP/PFA however is a straight upgrade from FEP, and is cheaper than ACF. And yes, it uses the same ten
...stickninjazero in r/ElegooSaturn
October 30, 2025 10:10 AM
26
Elegoo Saturn 4 Ultra 16k - Water Washable
I'll just assume it bots or something, but for whatever reason, this thread is just filled with wrong answers. Well, technically the Wait time before print suggestion is correct, but is still useless because it fails to provide any guidelines for settings or why it works. Rest / Wait time is why you
...DarrenRoskow in r/ElegooSaturn
March 25, 2026 4:57 AM
9
Saturn 4 Ultra 16K, over a year of troubleshooting and I still can't fix it.
The S4U springloaded plate means that wait times are even more mandatory than regular printers. The light turns on way before the resin has settled and the springs have found home. This means you get a layer thicker than supposed especially at 20um, your bottom layers are probably closer to 0.5 or e
...KalleKantola in r/ElegooSaturn
July 8, 2025 8:02 PM
17
What is the BambuLab A1 of resin printing?
At the price point, the Saturn 4 Ultra 12k or 16k are $800-1200 of machine for $400-500. It and Heygears (at that $1200+ price point) do the most to absolve the user of tuning a dozen speeds and feeds for the Z-axis movement / release & retract cycle. Heygears does this by having their slicing and p
...DarrenRoskow in r/resinprinting
November 20, 2025 5:49 PM
16
Photon P1 vs Saturn 4 Ultra 16k
No build plate flatness issue with the Saturn 4 Ultra outside rare individual defects, but it will typically not achieve 100% perfect Z accuracy the first several layers. You will want to use a high amount of Rest After Retract (Chitubox) / Wait time before cure (UVTools) using UVTools for the first
...DarrenRoskow in r/resinprinting
April 12, 2026 7:19 PM
7
how reputable are elegoo printers?
The story people keep trying to spin about the frequency of problems with the automatic leveling build plate simply ignores scale of how many S4Us are out there in use. And there is a very simple solution with increase Wait time before cure for the first 10 or so layers. The Saturn 4 Ultra 12k and 1
...DarrenRoskow in r/resinprinting
April 15, 2026 3:46 PM
7
Looking to replace my current printers. Need input from professionals
Yeah Anycubic long term support is ass. I own an M3 Premium and they ended support for them almost 2 years ago, yet I can still order parts (other than LCDs) for my Saturn 2s from Elegoo... which are the same age as the M3 Premium. Heygears is supposed to open up some of their settings later this ye
...stickninjazero in r/resinprinting
March 20, 2026 11:33 PM
7
Elegoo mars 5 competitor?
Elegoo Saturn 4 Ultra 16K is an amazing out the box printer. Heated vat, tilt up lid, auto leveling, send through WiFi printing and updating, and auto calibration. I’ve done NO configuration on mine besides inputting my resin type and selecting a community profile with the highest ratings. I use Sun
...Zeldalovesme21 in r/resinprinting
April 16, 2026 3:49 PM
6