Buying Guide · Resin Printers · July 2026
Elegoo vs Formlabs: Saturn 4, Jupiter 2, and Every Form-Series Resin Printer, Honestly Compared
One brand sells you a printer. The other sells you a system. Here's the whole map — the Saturn 4 family, the new Jupiter 2, and all four current Formlabs SLA machines — and how to pick the right lane before you spend $520 or $9,999.
Search "best resin printer" and you'll drown in spec sheets. Search "Elegoo vs Formlabs" and you'll find surprisingly little that's straight with you — because the two brands aren't really competing on specs. They're competing on philosophy. Elegoo builds open machines that accept any 405 nm resin and asks you to be your own quality department. Formlabs builds a closed, validated ecosystem where the printer, the software, the resin cartridge, and the wash station were all engineered to remove decisions from your hands — and charges accordingly.
Full disclosure before a single spec: we're an Elegoo shop. The Saturn 4 Ultra 16K on our Carmel Valley bench runs client work every week at $9/hr. We don't own a Formlabs machine, so everything we say about the Form series comes from Formlabs' published documentation and independent reviews, attributed as such — not from pretending we've lived with one. That honesty cuts both ways: we'll also tell you exactly where a Form 4 earns its 7× price premium over our own machine.
The 30-Second Answer
Lane 1 · Elegoo
Buy Elegoo if failure costs you a reprint
Hobbyists, miniature painters, cosplay builders, Etsy sellers, prototyping on your own dime. Open 405 nm materials at $20–$50/L, best-in-class detail per dollar, and you do your own troubleshooting. $250–$949 buys the machine; your time is the service plan.
Lane 2 · Formlabs
Buy Formlabs if failure costs you a client
Engineering teams, dental and medical labs, businesses where a failed print means a missed deadline or a compliance problem. Validated materials, cartridge dispensing, phone support, and biocompatible workflows no consumer machine offers. $3,499–$19,999 buys the system.
That's the honest core of it. Everything below is the detail: what each machine in both lineups actually is, what the ecosystems really cost over a year, and the five questions that decide which lane you're in.
The Elegoo Side: Saturn 4 Family and the New Jupiter 2
Elegoo's resin lineup in mid-2026 splits into the mid-size Saturn 4 family — three machines sharing a generation — and the large-format Jupiter 2, which launched in April 2026 and replaces both the original Jupiter and the Jupiter SE. All of them take any standard 405 nm resin, from Elegoo's own bottles to Siraya Tech, Sunlu, or whatever your slicer profile can tame. That openness is the whole value proposition.
Prosumer · Open Vat
Elegoo Saturn 4
The entry point to the family: same 10-inch mid-size class and 12K-tier detail, minus the automation extras of its Ultra siblings. It's the machine Elegoo discounts hardest, and for a first resin printer that will mostly run miniatures and display pieces, it's a lot of screen for the money. Just know that the two features that most improve day-to-day reliability — the tilting vat and the resin heater — live upstairs in the Ultra models.
Class: 12K mid-size MSLA · Street price: frequently in the $200s–$300s on promotion · Who: first-printer buyers, budget mini farms
Prosumer · Open Vat
Elegoo Saturn 4 Ultra
The 2024 machine that made tilt-release mainstream at $399. Instead of ripping the build plate straight up after each layer, the vat tilts to peel the cured resin off the film at an angle — dramatically lower peel force, fewer failures, faster prints. Reviewers at Tom's Hardware and elsewhere called it the feature that re-energized a stagnant category, and we agree: after running one, straight-pull machines feel archaic. Auto-leveling, a monitoring camera, and a hinged hood round it out.
Build: 218.88 × 122.88 × 220 mm · Screen: 12K mono LCD · Launch price: $399 · Signature: tilt-release vat
Prosumer · Open Vat · Our Shop Machine
Elegoo Saturn 4 Ultra 16K
This is the machine on our bench, so we'll be specific. The 10-inch 16K panel (15,120 × 6,230 pixels) works out to a 14 × 19 µm pixel — fine enough that layer lines effectively vanish on miniatures and jewelry masters. Elegoo rates it up to 150 mm/h with the tilt vat; in our production use, real-world speeds depend heavily on resin and layer height, but full plates in under two hours are routine. The smart tank heater holds resin at 30 °C, which matters more than the spec sheet suggests — more on that in the San Diego section. The AI camera flags empty plates and detached prints; useful, occasionally overcautious. Launched January 2025 at $519.99 and it's frequently discounted into the low $400s.
Living with it: the release film is a consumable the firmware tracks for you — our FEP counter reset guide covers the swap — and if you batch parts across a full plate, read our multi-print settings fix before you learn the expensive way.
Build: 211.68 × 118.37 × 220 mm · Screen: 10" 16K (14 × 19 µm) · Speed: up to 150 mm/h (Elegoo's figure) · Launch price: $519.99 · Heater: 30 °C smart tank
Prosumer · Large Format · Ships Q3 2026
Elegoo Jupiter 2
Announced at RAPID+TCT 2025, launched April 15, 2026 at $949, with shipping starting this quarter. The pitch is simple: Saturn-class 16K detail across a 14-inch panel and a 302.4 × 161.98 × 300 mm build volume — roughly 14.6 liters, about 2.5× a Saturn 4. Pixel pitch lands at 20 × 26 µm, so you trade a little of the 16K machine's sharpness for the ability to print a full helmet, a terrain board section, or an entire army in one job.
What's genuinely new is the resin logistics. A two-way pump feeds from a 2 kg external bottle, auto-fills the vat mid-print, and pumps excess back when the job ends — the single messiest part of large-format resin work, automated. Add 30 °C tank heating, four-sensor auto-leveling, hinged double doors with a viewing window, a camera, and Elegoo's claimed ~10-second film swaps via pre-tensioned kits. Two honest caveats from early coverage: full-height prints require removing the tank to get the model out (Elegoo's own footnote), and first-wave reviews — CGMagazine among them — praise the print quality while noting the new software features are still maturing. At roughly 36 kg boxed, it's also a two-person lift.
Deciding between this and the Saturn 4 Ultra 16K? That's its own decision with its own trade-offs, and we've already written the full head-to-head: Jupiter 2 vs Saturn 4 Ultra 16K. Short version: buy sharpness and speed, or buy volume — not both.
Build: 302.4 × 161.98 × 300 mm (~14.6 L) · Screen: 14" 16K (20 × 26 µm) · Speed: up to 70 mm/h (Elegoo's figure) · Price: $949 · Feed: auto 2 kg pump system
The Formlabs Side: The Complete Form-Series Map
Formlabs' current resin lineup is four machines built on one print engine. In 2024 the company moved from the laser-based SLA of the Form 3 generation to what it calls the Low Force Display (LFD) engine — technically a masked-LCD architecture like Elegoo's, but paired with a high-power collimated backlight, a textured optical surface, and a flexible dual-layer film tank engineered to minimize peel forces. Every current Form printer is a variation on that engine at two sizes, in standard or biocompatible trim:
Professional · Desktop
Formlabs Form 4
The core machine. A 200 × 125 × 210 mm build volume (5.25 L), a 50 µm pixel, and Formlabs' headline claim: up to 100 mm/h, with most prints finishing in under two hours. Independent testing has largely backed the reliability story — Tom's Hardware measured dimensional consistency that supports Formlabs' precision claims, and the company itself reports success rates north of 98% and a Net Promoter Score of 60 for the Form 4 series (their figures, so weight accordingly). Everything is sensor-monitored: resin level, temperature, debris in the tank, cartridge state. The printer dispenses resin automatically from a spill-resistant cartridge, which is the philosophical opposite of pouring from a bottle.
Build: 200 × 125 × 210 mm · Pixel: 50 µm LFD · Speed: up to 100 mm/h (Formlabs' figure) · Price: $3,499 basic / $5,849 complete (Formlabs' published pricing at time of writing)
Professional · Biocompatible
Formlabs Form 4B — Dental and Medical Editions
Same hardware footprint as the Form 4, sold in Dental and Medical editions, with the real difference living in the material library and validation: the 4B unlocks Formlabs' biocompatible and sterilizable resins — surgical guide materials, dental model resins, and the regulatory documentation workflows that clinics and labs need. It carries a premium over the standard Form 4 that varies by edition and package. If you're a dental practice weighing this machine, we've written a dedicated guide: choosing the right Form 4B.
Hardware: Form 4 platform · Difference: biocompatible/sterilizable material access + validated clinical workflows · Editions: Dental, Medical
Professional · Large Format
Formlabs Form 4L
The Form 4 scaled 4.6×: a 353 × 196 × 350 mm build volume, a 46 µm pixel, up to 80 mm/h, and Formlabs' claim that most large prints finish in under six hours. It holds two resin cartridges and can pair with a pump system for bulk containers. Tom's Hardware's review called it a premium business-class machine and noted it arrived by freight truck on pallets — this is capital equipment, not a desktop purchase. Interestingly, the Form 4L is also where Formlabs formally opened the door to third-party materials at launch, via a paid Open Material Mode license.
Build: 353 × 196 × 350 mm (~24 L) · Pixel: 46 µm LFD · Speed: up to 80 mm/h (Formlabs' figure) · Price: $9,999 basic / $19,999 complete (Formlabs' published pricing at time of writing)
Professional · Large Format · Biocompatible
Formlabs Form 4BL — Dental and Medical Editions
The 4L platform with the biocompatible library — Formlabs cites up to 32 compatible materials on this machine, including a dozen for biocompatible parts. This is the printer for dental labs running full-arch batch production and hospital point-of-care labs printing anatomical models at scale. Same freight-truck reality as the 4L, plus medical service plan options that include replacement-printer shipping to protect uptime.
Hardware: Form 4L platform · Materials: up to ~32 incl. biocompatible library (Formlabs' figures) · Editions: Dental, Medical
Two clarifiers on "all the Formlabs printers." First: the Fuse 1+ and the new Fuse X1 are Formlabs machines but they are not resin printers — they're SLS, fusing nylon powder with a laser. We covered the $84,999 Fuse X1 launch separately in our Fuse X1 breakdown. Second: the Form 3+, 3B, 3L, and 3BL are the previous laser-SLA generation — still in service everywhere, but the Form 4 series has superseded them, and consumables are not cross-compatible. And a heads-up for anyone buying late in 2026: Formlabs has publicly said it plans to ship three additional printer platforms within the next twelve months, so this lineup may grow.
The Five Questions That Actually Decide It
Spec-sheet resolution won't settle this — a 16K Elegoo panel out-resolves a Form 4's 50 µm pixel on paper, and Formlabs argues (with some justification from reviewers) that collimated light and pixel smoothing close the visible gap. The real decision lives in five other places:
Elegoo
Formlabs
Any 405 nm resin, no license. Commodity bottles run $20–$50/L; specialty formulas more. Pour it yourself, filter it yourself.
Formlabs cartridges typically $99–$250+/L depending on material. Metered, spill-resistant, auto-dispensed. Third-party resin requires a paid Open Material Mode license (reported around $875 on Form 4-class machines and substantially more on the 4L; free for accredited schools — pricing varies, confirm with Formlabs).
You do, with forums, our guides, and Elegoo's consumer warranty. Parts are cheap and plentiful; downtime is your problem to manage.
Pro Service Plans with phone support, training, diagnostics, and (on medical plans) replacement-unit shipping. You're buying uptime as a product.
No validated biocompatible workflow exists on consumer open-vat machines. Hobby "dental-style" models, yes; anything patient-contacting, no.
The 4B/4BL line is the point: validated biocompatible and sterilizable materials with documentation clinics can actually use.
Scale wide. One Form 4 basic buys roughly seven Saturn 4 Ultra 16Ks or three-plus Jupiter 2s — a redundant farm where any one machine can fail without stopping production.
Scale validated. One machine, one material profile, one predictable output — plus Form Auto and fleet software when you're ready to multiply that.
Wash/cure station ($100–$300), IPA, films, gloves, ventilation, and the hours you spend dialing exposure settings per resin.
Tanks (~$249 on the 4L), cartridge premiums, service plan renewals, and ecosystem gravity — once your workflow is validated on Formlabs materials, leaving is expensive.
Notice what's not on that list: print quality. Both lanes produce parts that would have looked like industrial output five years ago. The honest difference is that Elegoo makes you earn consistency and Formlabs sells it pre-earned. Whether that's worth a 7× hardware premium plus 3–5× material costs is entirely a function of what a failed print costs you.
Who Buys What: The Realistic Personas
Miniatures, tabletop, display pieces: Saturn 4 Ultra 16K, no contest. The 14 × 19 µm pixel is the sharpest tool in either lineup for this work, and third-party mini-tuned resins cost a fifth of a cartridge. Our best resin printers of 2026 roundup reaches the same verdict from a different direction.
Cosplay, props, terrain, batch Etsy production: Jupiter 2 — with the caveat that it ships this quarter and its software is still maturing, so early adopters should be comfortable troubleshooting. If you need proven-today large format, the wider field is mapped in our largest resin printers guide.
Engineering prototypes on a business clock: Form 4. The cartridge system, validated material profiles, and camera-plus-Dashboard remote monitoring are built for a team where the printer is a tool, not a hobby. Materials like Formlabs' silicone, ceramic-filled, and flame-retardant resins simply don't have reliable open-market equivalents with published datasheets.
Dental and medical labs: Form 4B or 4BL, full stop — this is the one persona where the Elegoo lane isn't a lane at all, because validation is the product. Start with our Form 4B dental guide. (And to be plain about our own shop: we print models and prototypes; we are not a medical device manufacturer, and nothing here is medical advice.)
Large-format production with a budget line for it: Form 4L or 4BL if validation matters; a small farm of Jupiter 2s if redundancy matters more than paperwork.
Not sure resin is even your process? Step back one level: our resin vs FDM deep dive settles the technology question before you settle the brand question.
The San Diego Reality Check
Marine layer mornings are a resin problem. May Gray and June Gloom put coastal garages in the low 60s °F with 70%+ humidity — and cold resin prints badly: sluggish flow, unpredictable exposure, more failures. This is why the 30 °C tank heaters on the Saturn 4 Ultra 16K and Jupiter 2 aren't gimmicks here, and why Formlabs builds resin temperature control into every Form machine. If your printer lives near the coast, heated resin is the single most underrated spec on this page.
Ventilation isn't optional in an apartment. Every machine on this page uses photopolymer resin — a skin sensitizer with real fume considerations. Formlabs formulates for low odor and Elegoo sells carbon-filter accessories, but neither replaces airflow. Our enclosure and ventilation guide covers setups from $50 DIY to professional, and every resin printer needs a matching wash and cure station sized to its plate.
SDG&E won't be the expense. The Saturn 4 Ultra 16K tops out around 144 W — even at San Diego's electricity rates, a long print costs pennies. The consumable that actually hits your wallet is resin, which is exactly why the open-vs-cartridge question above matters more than any wattage figure.
FAQ
Is Formlabs actually worth it over Elegoo?
If a failed print costs you only a reprint — no. An Elegoo machine plus patience delivers comparable part quality for a fraction of the money. If a failed print costs you a client deadline, a validated process, or a compliance requirement, the Formlabs premium buys exactly the things Elegoo doesn't sell: cartridge-metered materials, phone support, service plans, and biocompatible validation. Price the failure, not the printer.
Can Formlabs printers use cheap third-party resin?
Yes, via Open Material Mode — a paid, per-printer license that unlocks any 405 nm resin with custom print settings. Press coverage has reported it around $875 for Form 4-class machines and several thousand dollars on the Form 4L, and Formlabs offers it free to accredited educational institutions; pricing changes, so confirm current terms with Formlabs directly. Without OMM, you're in the cartridge ecosystem at roughly $99–$250+ per liter.
Saturn 4 Ultra 16K or Jupiter 2 — which Elegoo should I buy?
Sharpness and speed, or volume. The 16K machine has the finer pixel (14 × 19 µm vs 20 × 26 µm), roughly double the rated speed, and a proven track record; the Jupiter 2 prints 2.5× the volume with automated resin feeding but ships this quarter with software still maturing. We've written the complete head-to-head with pricing history and workflow caveats: Jupiter 2 vs Saturn 4 Ultra 16K.
Can I do dental work on an Elegoo printer?
You can print dental-style study models and hobby work on any good MSLA machine. You cannot run a validated clinical workflow on one — patient-contacting applications require biocompatible materials with regulatory documentation, which is exactly what the Form 4B/4BL line exists to provide. Our Form 4B dental guide walks through that decision. This is general information, not medical or regulatory advice.
What if I don't want to buy any of these?
Then don't — that's literally our business. We run production resin printing on the Saturn 4 Ultra 16K covered in this guide at $9/hr plus material (FDM from $7/hr), and we handle the resin, the ventilation, the washing, and the curing. For one project or occasional parts, a service beats a $520–$9,999 machine plus consumables every time. We also pick the right resin per job from the field in our 2026 resin guide.
Skip the Buying Decision Entirely
High-detail resin parts printed in San Diego on the Saturn 4 Ultra 16K from this guide — $9/hr plus material, FDM from $7/hr. Already own a resin printer that's misbehaving? We repair all brands across San Diego County, Elegoo and Formlabs included.
Request a Print or Repair📞 858-342-6984 · ✉️ dreaming3dprinting@gmail.com
📷 @dreaming3dprinting · 🌐 dreaming3d.net · Carmel Valley, San Diego
Prices and availability are volatile. Saturn 4 Ultra 16K launched at $519.99 (January 2025) and is frequently discounted; Jupiter 2 retail is $949 with shipping from Q3 2026; Form 4 ($3,499 basic / $5,849 complete) and Form 4L ($9,999 basic / $19,999 complete) reflect Formlabs' published US pricing at the time of writing — Form 4B/4BL pricing varies by edition and package, so quote directly. Speed figures (150 mm/h Saturn 4 Ultra 16K, 70 mm/h Jupiter 2, 100 mm/h Form 4, 80 mm/h Form 4L), success rates, and material counts are manufacturer claims unless attributed to independent reviews. Open Material Mode pricing is press-reported and subject to change. Resin printing involves skin-sensitizing chemicals — glove up, ventilate, and never treat resin parts as food-safe or for prolonged skin contact. Dreaming3D prints plastics only: no metal parts, no load-bearing structural components, and we are not a medical device manufacturer.
EDITORIAL BLOCK — STRIP BEFORE PUBLISH (wrapped in data-nosnippet so Google won't surface it in snippets even if left in — added in response to the metadata-in-SERP flag on the reverse-engineering and CAD-supports posts).
Slug: elegoo-vs-formlabs-resin-printers · Meta title: Elegoo vs Formlabs: Saturn 4, Jupiter 2 & the Full Form Lineup | Dreaming3D · Meta description: Saturn 4 family and the new Jupiter 2 vs every Formlabs resin printer — Form 4, 4B, 4L, 4BL. Real prices, open vs cartridge resin, and which lane fits you. San Diego printing from $9/hr.
Cannibalization verdict (2 variants run 2026-07-11): "site:dreaming3d.net resin printer comparison" + "site:dreaming3d.net Formlabs Form 4 Elegoo". Collisions found and resolved by differentiation: /elegoo-jupiter-2-saturn-4-ultra owns the intra-Elegoo head-to-head (this post links instead of re-fighting it); /largest-resin-3d-printers-2026-ultimate-size-formlabs-guide owns the size-tier angle; /the-ultimate-guide-to-the-best-resin-3d-printers-of-2026 owns the general roundup; /formlabs-dental-3d-printer-guide-choosing-the-right-form-4b owns dental depth. THIS post owns the cross-brand decision cluster: "elegoo vs formlabs", "saturn 4 vs form 4", "jupiter 2 vs form 4l", "formlabs resin printer lineup", "is formlabs worth it", "formlabs open material mode cost".
Cross-link audit (all VERIFIED LIVE via site: SERPs this session): elegoo-jupiter-2-saturn-4-ultra ✓ · the-ultimate-guide-to-the-best-resin-3d-printers-of-2026 ✓ · largest-resin-3d-printers-2026-ultimate-size-formlabs-guide ✓ · formlabs-dental-3d-printer-guide-choosing-the-right-form-4b ✓ (×2 links: card + FAQ) · formlabs-just-aimed-big-sls-at-the-factory-floor ✓ · resin-vs-fdm-3d-printing-a-deep-dive-on-cost-quality-speed-and-safety ✓ · best-3d-printer-enclosures-2026-fdm-amp-resin-complete-guide ✓ · best-wash-cure-stations-in-2026 ✓ · reset-the-fep-counter-on-your-saturn-4-ultra ✓ · why-multiple-prints-fail-on-saturn-4-ultra-16k-settings-fix ✓ · the-top-resins-of-2026-every-category-every-use-case-one-definitive-guide ✓ · /pages/repair-request ✓ (standing CTA).
Reciprocal link TODOs: add a link TO this post FROM (1) elegoo-jupiter-2-saturn-4-ultra ("how both stack against Formlabs"), (2) largest-resin-3d-printers-2026 guide (Formlabs section), (3) formlabs-dental-3d-printer-guide (context: where 4B sits in the full lineup), (4) the-ultimate-guide-to-the-best-resin-3d-printers-of-2026 (Form 4 section).
Namespace registered: evf- (.evf-wrap). Font trio registered: Unbounded / Albert Sans / Martian Mono (new trio, no reuse of flagged aesthetics). Brand orange (CTA hex): exactly 1 occurrence, on the .evf-btn only.
Claims-hedging log: 150 mm/h + 30 °C heater + 10 s film swap (Elegoo claims); 70 mm/h Jupiter 2 (Elegoo claim); Jupiter 2 software maturity (CGMagazine, attributed); 100 mm/h / under-2-h / 80 mm/h / under-6-h / 98%+ success / NPS 60 / material counts (Formlabs claims, flagged as "their figures"); Form 4 dimensional consistency (Tom's Hardware, attributed); OMM pricing $875 / 4L-tier figure (press-reported, hedged, "confirm with Formlabs"); all prices "at time of writing".
Refresh triggers: (1) Jupiter 2 begins shipping Q3 2026 — update once street reviews and real availability land; (2) Formlabs stated three new printer platforms within 12 months (VoxelMatters, July 2026) — revisit lineup section on any launch; (3) prices volatile, esp. Saturn discounts and OMM terms; (4) NOTE: largest-resin-3d-printers-2026 post lists Form 4 at $4,069 vs current $3,499 published — flag that post for a pricing refresh pass.