Anycubic Kobra S1 ACE 2 Pro Combo vs Elegoo Neptune 4 Pro
Head-to-head 3D printer comparison, 2026
The Anycubic Kobra S1 ACE 2 Pro Combo and Elegoo Neptune 4 Pro are both FDM 3D printers competing in different tiers, $499 vs $259. We scored both across value, beginner-friendliness, quality, speed, and reliability. Here's the full breakdown.
Our Verdict
It's a dead heat, both score 8/10 overall. The Anycubic Kobra S1 ACE 2 Pro Combo wins in Speed, while the Elegoo Neptune 4 Pro takes Beginner Friendliness. Pick based on which strengths matter more to you.
Score Breakdown
Specifications
| Spec | Anycubic Kobra S1 ACE 2 Pro Combo | Elegoo Neptune 4 Pro |
|---|---|---|
| Price | $499 | $259 |
| Type | FDM | FDM |
| Build Volume | 250 x 250 x 250 mm | 225 x 225 x 265 mm |
| Print Speed | 600 mm/s | 500 mm/s |
| Min Resolution | 0.05 mm | 0.05 mm |
| Weight | 13 kg | 10.5 kg |
| Overall Score | 8/10 | 8/10 |
Pros & Cons
Anycubic Kobra S1 ACE 2 Pro Combo
+16 colors out of the box — doubles the 8-color S1 Combo and quadruples the Bambu A1 Combo (4)
+Fully enclosed CoreXY handles ABS, ASA, and engineering filaments without warping
+44dB quiet mode is unusually low for a 600mm/s CoreXY — apartment-friendly
+Upgraded hotend is rated for the full Anycubic filament range
+Early bird €459 undercuts the Bambu P2S (€549) and matches pricing of the older 8-color S1 Combo
−Brand new product — early adopter risk on firmware and ACE 2 Pro reliability
−Anycubic slicer still trails Bambu Studio on automation and profile polish
−ACE 2 Pro adds significant desk footprint
−Early bird pricing ends May 31 — regular price expected to climb
Elegoo Neptune 4 Pro
+Linear rails at $259 is a feature you normally pay $400+ for
+Klipper pre-installed with decent out-of-box profiles
+500mm/s sustained prints well with stock settings
+Build quality feels more solid than the price suggests
−Early units shipped with firmware bugs that needed patching
−Elegoo's support community is a fraction of Creality's size
−No WiFi means USB-only printing
Who Should Buy Which?
Choose the Anycubic Kobra S1 ACE 2 Pro Combo if you want:
- A great printer for multi-color
- A great printer for speed
- A great printer for enclosed
- ACE 2 Pro multi-color system (up to 16 colors)
- Fully-enclosed CoreXY architecture
- Upgraded hotend (all-filament compatible)
Choose the Elegoo Neptune 4 Pro if you want:
- A great printer for budget
- A great printer for speed
- Klipper firmware
- Auto bed leveling
- Direct drive
Frequently Asked Questions
Is the Anycubic Kobra S1 ACE 2 Pro Combo better than the Elegoo Neptune 4 Pro?
They tie at 8/10. The Anycubic Kobra S1 ACE 2 Pro Combo suits multi-color and speed, while the Elegoo Neptune 4 Pro is aimed at budget and speed.
Which is better for beginners, Anycubic Kobra S1 ACE 2 Pro Combo or Elegoo Neptune 4 Pro?
The Elegoo Neptune 4 Pro is more beginner-friendly (8/10 vs 7/10) with easier setup and a gentler learning curve.
Is the Anycubic Kobra S1 ACE 2 Pro Combo worth $240 more than the Elegoo Neptune 4 Pro?
The Elegoo Neptune 4 Pro actually scores higher (8/10) despite costing $240 less. The Anycubic Kobra S1 ACE 2 Pro Combo only makes sense if you specifically need multi-color.
What's the main difference between Anycubic Kobra S1 ACE 2 Pro Combo and Elegoo Neptune 4 Pro?
Build volume (250x250x250mm vs 225x225x265mm) and print speed (600 vs 500 mm/s). The Anycubic Kobra S1 ACE 2 Pro Combo is best for multi-color; the Elegoo Neptune 4 Pro targets budget.