Our Verdict
ELEGOO Saturn 4 Ultra 16K Resin 3D Printer Wins

The Ultra model justifies its $140 higher price with a significant upgrade to 16K resolution from 12K and a much faster print speed of 150mm/h, critical for professional or high-volume users. While the Saturn 4 offers a slightly larger build volume (218.948x122.936x219.964mm vs 211.582x118.364x219.964mm) and superior value, the Ultra's performance and advanced features make it the stronger contender for those prioritizing speed and detail. The ELEGOO Saturn 4 is the better pick for budget-conscious hobbyists or those taking their first steps into resin printing, offering excellent detail and auto-leveling at a more accessible price point.
Bottom Line: ELEGOO Saturn 4 Ultra 16K Resin 3D Printer is the better choice. The Ultra model justifies its $140 higher price with a significant upgrade to 16K resolution from 12K and a much faster print speed of 150mm/h, critical for professional or high-volume users.
In-Depth Analysis
How they compare in practice
The ELEGOO Saturn 4 and Saturn 4 Ultra 16K represent different tiers within ELEGOO's resin 3D printer lineup, catering to distinct user needs through key spec deltas. The most striking difference lies in print resolution and speed. The Saturn 4 Ultra boasts an impressive 16K mono LCD, a substantial leap from the Saturn 4's 12K. In real-world terms, this means the Ultra can produce models with even finer surface details and sharper edges, which is crucial for applications like jewelry, highly detailed miniatures, or precise prototypes where every micron matters. While 12K is already excellent, 16K provides an extra layer of fidelity that discerning users will appreciate.
Beyond resolution, the Ultra's rated printing speed of 150mm/h offers a monumental advantage over the standard Saturn 4, for which a specific high print speed isn't a highlighted feature. This translates directly into significantly faster job completion times, making the Ultra ideal for users with higher production demands or those who simply value efficiency. Imagine cutting hours off larger prints or being able to produce multiple iterations in the time it takes the standard model to complete one. This speed, combined with a heated resin tank, ensures optimal resin viscosity and print stability, especially in cooler environments, reducing print failures and improving consistency.
Conversely, the standard Saturn 4, priced at $379.99, presents a compelling value proposition. It still offers a very capable 12K resolution and a slightly larger build volume of 218.948x122.936x219.964mm compared to the Ultra's 211.582x118.364x219.964mm, giving it a marginal edge in maximum part size. Both printers benefit from smart auto-leveling, simplifying setup, but the Ultra adds an AI camera for enhanced print monitoring and error alerts, a feature that, while useful, also introduces an element of complexity and potential points of failure. Users of the standard Saturn 4 will find a robust and reliable machine for high-quality prints without the premium cost and the added power draw associated with the Ultra's heated tank and advanced electronics. The trade-off is often speed and the absolute highest fidelity versus affordability and robust core performance.
Key Differences
The most significant spec differences at a glance
Max Print Speed Mm S
100% lessAdvantages
Where each product wins
ELEGOO
- Max Print Speed Mm S: 100% higher (0 vs 0.041666666666666664)
Which to Pick for Your Situation
Concrete scenarios with a clear recommendation
For high-volume production or professional use
ELEGOOThe Saturn 4 Ultra's 150mm/h print speed and heated resin tank significantly accelerate workflow and ensure print stability for consistent results.
For budget-conscious hobbyists and beginners
ELEGOOThe ELEGOO Saturn 4 offers excellent 12K detail and auto-leveling at a more accessible price point of $379.99, providing great value.
For printing intricate artistic models or jewelry masters
ELEGOOThe Saturn 4 Ultra's 16K resolution provides superior fine detail capture compared to the 12K of the standard Saturn 4, essential for high-fidelity work.
For maximizing print volume for large single pieces
ELEGOOThe Saturn 4 offers a slightly larger build volume of 218.948x122.936x219.964mm, marginally better for bigger prints than the Ultra's 211.582x118.364x219.964mm.
Who Should Buy Which?
Find the right product for your needs
Buy ELEGOO if...
ELEGOO Saturn 4 Resin
The ELEGOO Saturn 4 is the ideal choice for hobbyists, enthusiasts, and those new to resin 3D printing who are looking for an excellent balance of performance, features, and value. This buyer prioritizes high-quality results for detailed models like tabletop gaming miniatures, small busts, or artistic prototypes without breaking the bank. With a price point of $379.99, it's significantly more affordable, allowing budget-conscious users to access advanced features like its 12K HD Mono LCD for impressive detail and smart automatic leveling for hassle-free setup. They appreciate the large 218.948x122.936x219.964mm build volume, which is generous for most personal projects, and the 92% light uniformity ensures consistent prints across the entire build plate. This user doesn't necessarily require the absolute fastest print speeds or the very highest 16K resolution, being content with the already superb output the Saturn 4 provides, and prefers a slightly simpler system without the added complexity of features like an AI camera, which they might not fully utilize.
Buy ELEGOO if...
ELEGOO Saturn 4 Ultra
The ELEGOO Saturn 4 Ultra 16K is tailored for experienced users, professionals, or small businesses demanding top-tier performance, speed, and precision for their resin 3D printing needs. This buyer's priorities are rapid iteration, extreme detail, and consistent, high-reliability production. They are willing to invest the higher price of $519.99 for a machine that delivers on these fronts. The standout 16K Mono LCD is critical for producing ultra-fine features required for jewelry casting masters, intricate dental models, or highly detailed collectible figures where every micron matters. The exceptional 150mm/h print speed is a game-changer for reducing project turnaround times and increasing throughput, directly impacting profitability for commercial users. Furthermore, the integrated heated resin tank ensures optimal printing conditions and material stability, especially in environments with fluctuating temperatures, minimizing failures. This user also benefits from features like the AI camera for smart monitoring, providing real-time feedback and error detection, enhancing the reliability of longer or more critical prints, even if it adds some system complexity. They are giving up a slightly larger build volume and a lower upfront cost, but gain unparalleled speed, resolution, and advanced print stability features.
Spec Comparison
9 specs compared
| Specification | ![]() | ![]() |
|---|---|---|
| Price | $380 | $520 |
| Rating | 4.4(1.5k) | 4.1(199) |
| Build Volume mm | 218.948x122.936x219.964 | 211.582x118.364x219.964 |
| Max Print Speed mm S | 0 | 0.04 |
| Leveling Type | Auto | Auto |
| Enclosed | Yes | — |
| Model Number | SATURN 4 | Saturn 4 Ultra 16K |
| Printer Type | Resin (SLA/MSLA) | Resin (SLA/MSLA) |
| Resume Print | Yes | Yes |
| WiFi | — | Yes |
| Filament Sensor | — | Yes |
Swipe horizontally to see all columns
Pros & Cons
Quick overview of strengths and weaknesses
ELEGOO Saturn 4
- 12K LCD for ultra-fine model detail
- Auto-leveling simplifies initial setup
- 92% light uniformity ensures consistent prints
- Large 219x123x220mm build volume
- Large prints consume significant resin volume
- 12K resolution may lead to longer print times
- No integrated air filtration for fumes
ELEGOO Saturn 4
- 16K resolution enables intricate model production.
- Heated resin tank ensures stable print conditions.
- Prints at 150mm/h, speeding up job completion.
- AI camera monitors status, alerts to print errors.
- Added components like heater increase power draw.
- AI camera adds system complexity and failure points.
- Large build volume can increase resin material cost.
Frequently Asked Questions
Common questions about this comparison
What is the main difference in print quality between the Saturn 4 and Saturn 4 Ultra?
The Saturn 4 features a 12K HD Mono LCD, while the Saturn 4 Ultra boasts a 16K Mono LCD. The Ultra delivers finer detail and sharper edges due to its higher pixel density, resulting in more intricate prints.
How much faster is the Saturn 4 Ultra at printing?
The Saturn 4 Ultra is significantly faster, capable of printing at speeds up to 150mm/h. The standard Saturn 4's speed is not explicitly highlighted as a high-speed feature, making the Ultra's performance a substantial upgrade for production efficiency.
Does either printer offer automatic leveling?
Yes, both the ELEGOO Saturn 4 and the Saturn 4 Ultra feature smart automatic leveling, simplifying the initial setup process and reducing the potential for print failures caused by improper bed leveling.
What are the benefits of the Saturn 4 Ultra's heated resin tank?
The heated resin tank on the Saturn 4 Ultra maintains a consistent resin temperature, which is crucial for print stability and success, especially in cooler environments. It optimizes resin viscosity for reliable, high-quality prints.
Is there a significant difference in build volume between the two models?
The Saturn 4 has a build volume of 218.948x122.936x219.964mm. The Saturn 4 Ultra's volume is slightly smaller at 211.582x118.364x219.964mm. The difference is minor, with the standard Saturn 4 offering a bit more room.
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