3D Printing InfoPrinter comparison
Bambu Lab A1 mini vs ELEGOO Saturn 4 Ultra 16K
Compare hardware, build volume, printing specifications, dated prices and sources.
2 selected · all documented properties
Open these two in the interactive comparisonMore Bambu Lab A1 mini comparisonsMore ELEGOO Saturn 4 Ultra 16K comparisons
| Property | Bambu Lab A1 miniBEDSLINGER | ELEGOO Saturn 4 Ultra 16KRESIN |
|---|---|---|
| Identity | ||
| Brand | Bambu Lab | ELEGOO |
| Class | BEDSLINGER | RESIN |
| Identity & Market | ||
| Manufacturer & exact marketed model name (verify the exact product identity first) | Bambu Lab A1 mini. Store title: "Bambu Lab A1 mini 3D Printer"[1] | Elegoo Saturn 4 Ultra 16K. Elegoo's product handle is saturn-4-ultra-16k-10inch-monochrome-lcd-resin-3d-printer. 3DJake item number ELG-50.101.038300[2][3] |
| Release date (announcement and actual shipping) | Shipped in the second half of 2023; Tom's Hardware published its A1 mini review on 13 October 2023, ahead of the full-size A1 review of 14 December 2023[4][5] | Not documented |
| Street price (USD; dated snapshot per entry) | From $219.00 (base A1 mini) on the Bambu Lab US store, Aug 2026, during an advertised Back-to-School sale; the product page lists A1 mini and A1 mini Combo variants[6][7] | $649.99 in us.elegoo.com's live Shopify product JSON, in stock, with compare_at_price also $649.99 — no discount active at the time of checking (Aug 2026)[3] |
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | Two SKUs: A1 mini and A1 mini Combo (adds the AMS lite). Distinguish from the full-size A1 by build volume (180 vs 256 mm cube), bed ceiling (80 vs 100 C), screen (2.4 vs 3.5 inch), Z drive (single leadscrew with a coupling vs dual leadscrews belt-synced) and weight (5.5 vs 8.3 kg)[1][8][9][10] | Distinct from the earlier Saturn 4 Ultra (12K); the 16K carries a 15120 x 6230 masking LCD with 14 x 19 um pixels. Elegoo also sells it bundled with a Mercury Plus V2.0 wash/cure station and as a pre-owned SKU, neither of which is the printer-only price[2][3] |
| Market position: superseded? successor announced? | Still the entry model in the Bambu Lab US store line-up in Aug 2026 and the cheapest machine listed[6] | Not documented |
| Physical & Frame | ||
| Build volume X×Y×Z (mm) — advertised vs actually usable | 180 x 180 x 180 mm (manufacturer figure)[1] | 211.68 x 118.37 x 220 mm[2] |
| Machine footprint (mm) & clearance needed (cable/spool overhang) | 347 x 315 x 365 mm (Bambu tech specs; Tom's Hardware prints 347 x 314 x 365 mm)[1][4] | 327.4 x 329.2 x 548 mm[2] |
| Net weight (kg) | 5.5 kg net[1] | Not documented |
| Frame construction & material | Steel plus extruded aluminium chassis[1] | Metal housing with a flip-up cover and a drip guard[2] |
| Enclosure: open / enclosed; panel material; door/lid | Open frame, no enclosure[1] | Flip-up lid (Elegoo's own naming) over an open frame; UV-blocking cover[2] |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | Cartesian bed-slinger: toolhead on an X guide rail and crossbeam, print platform moving in Y on a guide rail, toolhead carried in Z[9] | MSLA with tilt-release: the vat tilts to peel each layer rather than pulling straight up. Elegoo claims the mechanism cuts curing time by 25%. Single Z axis, Z precision 0.02 mm[2] |
| X-axis guide type (rods / linear rails / V-wheels; size) | Horizontal linear guide rail with the printhead on a sliding block; rail size not published[9] | Not documented |
| Y-axis guide type | Horizontal linear guide rail carrying the print platform, belt-driven in Y[9] | Not documented |
| Z-axis: leadscrew count & type, sync mechanism, anti-backlash | Single leadscrew with nut, coupling and stepper motor - the motor drives the leadscrew directly through the coupling. This is the clearest hardware difference from the A1, which uses two leadscrews synchronised by a belt[9][10] | Not documented |
| Speed & Acceleration | ||
| Max print speed (claimed, mm/s) | 500 mm/s max toolhead speed (manufacturer claim); no independent measurement found[1] | Not documented |
| Max acceleration (claimed, mm/s²) | 10000 mm/s2 max toolhead acceleration (manufacturer claim)[1] | Not documented |
| Max volumetric flow claimed (mm³/s) | 28 mm3/s claimed on a 150x150 mm single-wall model in Bambu ABS at 280 C - note this is the ABS figure quoted for a machine whose own spec sheet lists ABS as not recommended[1] | Not documented |
| Extruder | ||
| Type (direct drive / bowden) & design name | Direct drive with hardened-steel extruder gears; toolhead also holds the cutter unit, filament hub and filament sensor[1][9] | Not documented |
| Hotend & Nozzle | ||
| Hotend design (proprietary/standard; quick-swap mechanism?) | All-metal integrated hotend (nozzle plus heatsink in one unit), quick-swap; stainless-steel nozzle, 0.4 mm included, 0.2/0.6/0.8 mm optional[1][9] | Not documented |
| Max nozzle temp claimed AND firmware max temp limit (both values) | 300 C claimed max hot-end temperature[1] | Not documented |
| Heated Bed & Surface | ||
| Max bed temp claimed AND firmware limit | 80 C max build-plate temperature - the lowest of the current Bambu range, and the reason ABS/ASA are listed as not recommended[1][9] | Not documented |
| Bed surface (material, texture, coating), single/double-sided | Textured PEI plate; Smooth PEI and Dual-Texture PEI plates also compatible[1] | Not documented |
| Leveling & Z-Offset | ||
| Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe) | Nozzle-touch automatic bed levelling and automatic Z-offset; Tom's Hardware confirms the nozzle itself is the probe[4][9] | Automatic levelling, plus intelligent mechanical sensor alarms[2] |
| Filament Handling & Detection | ||
| Filament runout sensor (type, location) | Yes - run-out sensor, filament odometry and filament-tangle sensor[1] | Not documented |
| Multi-material/multi-color capability or official upgrade path | Optional AMS lite (A1 mini Combo); AMS / AMS 2 Pro / AMS HT need an AMS HUB (SA013) accessory[7] | Not documented |
| Cooling & Air Handling | ||
| Part-cooling fan(s): count, size, ducting design | One custom 5015 centrifugal part-cooling fan with two opposing outlets; closed-loop control. A separate MC board cooling fan is also fitted[1][9] | Not documented |
| Electronics & Power | ||
| Mainboard model & MCU (exact chip markings if teardowns exist) | Bambu names the motion controller as a dual-core Cortex-M4; no board model or chip markings published[1] | Not documented |
| Input voltage (110/220 V, switch or auto) | Not documented | 100-240 V, 50/60 Hz, 24 V 6 A[2] |
| Total rated power draw | 100-240 VAC 50/60 Hz; max power 150 W for the whole machine. Bed heater wattage is not published separately[1] | Not documented |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | Closed-source proprietary firmware - not a Klipper or Marlin derivative, and no printer-firmware source is published. The bambulab GitHub organisation carries 11 repositories (Bambu Studio, wxWidgets/boost/ffmpeg forks, the wiki); none is printer firmware. Updates are delivered over the air via Bambu Studio / Bambu Handy[11] | Elegoo EL3D-4.0 system. Slicer is CHITUBOX[2] |
| Connectivity, UI & Camera | ||
| Display: size, type, touch? | 2.4-inch 320x240 IPS touchscreen[1] | 4-inch capacitive touchscreen (control panel — not the masking LCD, see W1)[2] |
| On-device UI capabilities (model preview, per-object controls, etc.) | Touchscreen plus Bambu Handy app and Bambu Studio PC application[1] | Not documented |
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | Wi-Fi 2.4 GHz only (802.11 b/g/n), Bambu-Bus, microSD card. No Ethernet, no USB host[1] | USB and Wi-Fi, with WLAN file transfer[2] |
| Camera: built-in / optional? Resolution & framerate (verify — marketing often omits real fps) | Built-in low-rate camera, up to 1080p, timelapse supported[1] | AI camera, 1920 x 1080[2] |
| Camera features: live monitor, timelapse, AI failure detection (spaghetti detection) — how real is it? | Not documented | AI camera with print-failure detection[2] |
| Calibration Routines & QoL | ||
| Assembly level & time from unbox to first print | Arrives mostly pre-assembled - only the filament wiper, spool holder and Bowden tubes to fit[4] | Not documented |
| Materials Support | ||
| Officially supported filament list | Ideal: PLA, PETG, TPU, PVA. Not recommended: ABS, ASA, PC, PA, PET and fibre-reinforced polymers[1] | 405 nm photopolymer resin; the heated tank is aimed at high-viscosity and high-speed resins. No closed compatibility list published[2] |
| Noise & Power Consumption | ||
| Noise: claimed dB and independently measured dB (distance/method) | Manufacturer claim only: the US store page claims "49dB Whisper-Quiet Operation" - the identical sentence appears on the A1 page, so treat it as line-level marketing copy rather than a per-model measurement. No independent dB measurement with a stated distance was found[7][12] | Not documented |
| Reliability, Support & Ecosystem | ||
| Warranty length & support reputation (evidence, not vibes) | 2-year limited warranty for consumers in the US, Canada, the EU, Switzerland, Norway and Iceland; 1 year in the rest of the world. Bambu Lab's own policy records the US/Canada term as a 2026 extension from one year to two[13] | Not documented |
| Independently Measured Performance | ||
| Review scores from major outlets (list outlet + score + date) | Tom's Hardware: Editor's Choice, rating 4.5 out of 5 in the page's structured data (13 October 2023)[4] | Not documented |
| Resin & MSLA | ||
| Masking LCD | Not documented | 10-inch 16K monochrome masking LCD, 15120 x 6230 px, XY pixel pitch 14 x 19 um (manufacturer specification)[2][3] |
| Light source | Not documented | COB light source with a Fresnel collimating lens[2] |
| Light uniformity & intensity | Not documented | Light energy at the plate quoted as 5 mW/cm2, i.e. 5000 uW/cm2 (manufacturer claim, attributed to the tilt-release and Fresnel optics). No uniformity percentage published and no independent measurement[2] |
| Vertical print speedmm/h | Not documented | Up to 150 mm/h (manufacturer claim). Elegoo does not state the layer height or resin type the figure assumes[2] |
| Release film | Not documented | PFA release film. No rated life published[2] |
| LCD life & replaceability | Not documented | Masking LCD shielded by tempered 9H protective glass. Elegoo publishes no rated screen life in hours and does not state user replaceability[2] |
| Resin vat & feeding | Not documented | Replaceable resin vat with a dual pour spout and a drip guard. Heated tank with automatic temperature measurement: Elegoo states resin reaches 25 C in 26 minutes from a 5 C ambient at 50% humidity (manufacturer figure). Capacity not published; no auto-refill[2] |
Manufacturer claims, independent measurements, packages and test conditions retain their source wording. FDM linear speed and resin vertical speed use different units and are not directly comparable. Unknown values are marked “Not documented”. Prices and source dates remain historical snapshots; check the linked guide for product details. Differences highlight text, not a universal winner.
Sources for this comparison
- Bambu Lab A1 mini - Technical Specifications bambulab.com · 2026-08 · vendor
- Elegoo Saturn 4 Ultra 16K product page (technical data and description) 3djake.com · 2026-08 · vendor
- Elegoo Saturn 4 Ultra 16K live Shopify product JSON us.elegoo.com · 2026-08 · vendor
- Tom's Hardware - Bambu Lab A1 Mini Review, 13 October 2023 tomshardware.com · 2026-08 · review
- Tom's Hardware - Bambu Lab A1 Review, Denise Bertacchi, 14 December 2023 tomshardware.com · 2026-08 · review
- Bambu Lab US Store - 3D Printers collection listing (base prices, Aug 2026) us.store.bambulab.com · 2026-08 · vendor
- Bambu Lab A1 mini store page (A1 mini / A1 mini Combo variants) us.store.bambulab.com · 2026-08 · vendor
- Bambu Lab A1 - Technical Specifications bambulab.com · 2026-08 · vendor
- Bambu Lab Wiki - A1 mini introduction wiki.bambulab.com · 2026-08 · doc
- Bambu Lab Wiki - A1 introduction wiki.bambulab.com · 2026-08 · doc
- GitHub - bambulab organisation repository list (11 repos, checked Aug 2026) github.com · 2026-08 · doc
- Bambu Lab A1 store page (A1 / A1 Combo variants) us.store.bambulab.com · 2026-08 · vendor
- Bambu Lab Warranty Policy bambulab.com · 2026-08 · vendor