The Bambu Lab A1 Mini (entry) and Elegoo Neptune 4 Pro (prosumer) come from different brands and sit in different tiers, so this is less a head-to-head than a question of how much printer you need. Both are open-frame bed-slinger printers with a 500 mm/s rated top speed and automatic calibration. The Neptune 4 Pro costs $41 more and gets you 130% more build volume and extra engineering materials (ABS and ASA); the A1 Mini answers with 4-slot multicolor.
Overdue for a refresh — no successor announced yet. Prices should be at their lowest
Best for: Budget-conscious beginners who want Bambu's ease of use and multicolor printing in a compact footprint.
Full details →Overdue for a refresh — no successor announced yet. Prices should be at their lowest
Best for: Budget-conscious makers who want a capable bed-slinger with Klipper firmware for customization — without Bambu's closed ecosystem or Prusa's premium pricing.
Full details →| Bambu Lab A1 Mini | Elegoo Neptune 4 Pro | |
|---|---|---|
| Pricing | ||
| Starting Price | ★ $219 | $260 |
| Print Specs | ||
| Tier | Entry | Prosumer |
| Motion | BedSlinger | BedSlinger |
| Build Volume | 180 × 180 × 180 mm | ★ 225 × 225 × 265 mm |
| Max Speed | 500 mm/s | 500 mm/s |
| Multicolor | ★ ✅ 4 slots | ❌ No |
| Enclosure | ❌ | ❌ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ❌ | ❌ |
| Upgrade Kit | — | — |
| Buy Timing | ||
| Released | Oct 19, 2023 | Jul 15, 2023 |
| Cycle length | ~365 days | ~450 days |
| Cycle advice | Wait | Wait |
| Deals advice | Buy | Buy |
| Next model | — | — |
The A1 Mini was released on Oct 19, 2023, 1,120 days ago. Its previous release cycle ran about 365 days; it is now 755 days past that point and no successor has been announced.
The Neptune 4 Pro was released on Jul 15, 2023, 1,216 days ago. Its previous release cycle ran about 450 days; it is now 766 days past that point and no successor has been announced.
Both are overdue for a refresh with no successor announced. That should keep prices near their lowest, but a replacement could be announced at any time — check the launch calendar before buying.
Cycle and deal status as of November 12, 2026. See the launch calendar →
The A1 Mini lists at $219 and the Neptune 4 Pro at $260 — $41 apart, so the Neptune 4 Pro costs 19% more.
Per litre of build volume, that works out to $38 for the A1 Mini versus $19 for the Neptune 4 Pro — so the pricier Neptune 4 Pro actually gives you more build space per dollar.
With both in sale windows, this is a good moment to buy either — compare the live sale prices before you decide.
Our pick for most buyers is the A1 Mini, for a lower price ($41 less) and 4-slot multicolor, plus a higher editor score (9.0 vs 7.7). Go for the Neptune 4 Pro instead if you print large parts — its 225 × 225 × 265 mm build volume holds 130% more than the A1 Mini's 180 × 180 × 180 mm. One caveat: the A1 Mini is 755 days past its ~365-day cycle with no successor announced, so check the launch calendar before you buy.
How we judge timing and deals: read our methodology →
The A1 Mini sets up in minutes with automatic calibration and Bambu's guided first-print workflow.
Up to 4 colors with the AMS Lite accessory — Bambu's filament switching system with minimal waste purging.
Fits on a desk or shelf without taking over your workspace, while still printing at 500 mm/s.
The Neptune 4 Pro ships with Klipper pre-installed — enabling advanced input shaping, pressure advance, and configuration flexibility without modding.
A 500 mm/s rated speed at a price significantly below Bambu and Prusa alternatives.
Full automatic bed leveling reduces setup time and calibration friction.