Saturn 4 Ultra 16K

Elegoo

Saturn 4 Ultra 16K

131 positive 1 neutral 42 negative

Based on 174 Reddit mentions

$519.99

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Reddit mentions

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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

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stickninjazero in r/resinprinting

August 19, 2025 10:10 PM

40

New to Resin - which saturn?

Generally speaking the Saturn 4 Ultra 16k is the best option for most people. I investigated and wrote the original post explaining the 3-bit grayscale deficiency and it is still present. I also bought a S4U 16k and subsequently worked out a dithering method with UVTools to restore a significant por

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DarrenRoskow in r/ElegooSaturn

May 4, 2026 7:34 PM

8

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

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DarrenRoskow in r/ElegooSaturn

March 25, 2026 4:57 AM

9

Layer lines.... Going snaller layer height vs Antialiasing?

It's a Saturn 4 Ultra 16k, and I used the top rated 30um profile in lychee for Elegoo ABS-like 3.0 8K, and printed solid with medium grid supports and manual orientation. I also used the GPU based anti aliasing option. Total print time was 10 hours! Full disclosure this is with a coat of primer. Att

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Horvaticus in r/resinprinting

July 31, 2025 10:18 PM

18

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

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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

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DarrenRoskow in r/resinprinting

November 20, 2025 5:49 PM

16

First print not sticking ( Saturn 4 Ultra 16k)

All printers need more Rest After Retract (Chitubox) / Wait Before Print (Lychee) / Wait time before cure (UVTools) for the base layers. Your adhesion failure here is because your raft is printed with over thick layers. Almost looks like the raft was failing to adhere from the start or isn't actuall

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DarrenRoskow in r/resinprinting

May 25, 2025 11:49 PM

10

Anti Aliasing Saturn 4 Ultra

I recently found this as well. It appears recent firmware to avoid the "lasagna bug" is either skipping layers or skipping the gray pixels when it can't load the image to the LCD fast enough. I have similar results with my own experiments in vertical smoothing / AA here: https://www.reddit.com/r/res

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DarrenRoskow in r/ElegooSaturn

August 12, 2025 2:02 AM

10

Saturn 4 Ultra 16k - keep or wait for Saturn 5?

No, these are not graphics cards. There's a limit to their technological advancement. 16k print is close to injection moulding, any higher resolution is approaching gimmick status. Unless they revamp the tilt vat and improve fail detection, I can't see what tech improvements are to be made. I'm here

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Hupdeska in r/ElegooSaturn

December 16, 2025 7:52 PM

5

close to giving up

Hmm, not what you want to hear but my Saturn 4 Ultra has been rock solid, I just hit print. I am using Elegoo Satelite for slicing. If you haven't tried it, do it. It is free and easy to use. Are you rotating your models so they are at a angle? Use ChatGPT to help with settings. You can take a photo

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kendrid in r/ElegooSaturn

February 17, 2026 6:53 PM

5

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