Anycubic Kobra S1 ACE 2 Pro Combo vs Phrozen Sonic Mega 8K S2
Head-to-head 3D printer comparison, 2026
Comparing FDM to resin? The Anycubic Kobra S1 ACE 2 Pro Combo ($499, FDM) and Phrozen Sonic Mega 8K S2 ($749, RESIN) use fundamentally different technologies. FDM melts filament layer by layer; resin cures liquid with UV light. Here's how they stack up.
Our Verdict
The Anycubic Kobra S1 ACE 2 Pro Combo takes the crown with 8/10 vs 6.6/10. It pulls ahead in Value, Beginner Friendliness, Speed. The Phrozen Sonic Mega 8K S2 still puts up a fight in Print Quality and Reliability.
Score Breakdown
Specifications
| Spec | Anycubic Kobra S1 ACE 2 Pro Combo | Phrozen Sonic Mega 8K S2 |
|---|---|---|
| Price | $499 | $749 |
| Type | FDM | RESIN |
| Build Volume | 250 x 250 x 250 mm | 330 x 185 x 400 mm |
| Print Speed | 600 mm/s | 100 mm/s |
| Min Resolution | 0.05 mm | 0.01 mm |
| Weight | 13 kg | 22 kg |
| Overall Score | 8/10 | 6.6/10 |
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
Phrozen Sonic Mega 8K S2
+330x185mm plate is the largest resin build area in the consumer market at this price
+8K detail across the full plate without the hot spot degradation that plagues cheaper large-format LCDs
+Dual tilt release on a plate this size prevents the vacuum seal failures that ruin large prints
+Professional-grade aluminum build quality that handles the stress of frequent full-plate runs
−$749 for a resin printer is a serious investment, plus $80-120 for a wash station to match
−High resin consumption: a full plate run uses 400-500ml, which adds up weekly
−100mm/hr speed is the same as entry-level machines: the size advantage doesn't come with a speed advantage
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 Phrozen Sonic Mega 8K S2 if you want:
- A great printer for resin
- A great printer for large-prints
- A great printer for professional
- 8K mono LCD
- 33cm build plate
- Dual tilt release
Frequently Asked Questions
Is the Anycubic Kobra S1 ACE 2 Pro Combo better than the Phrozen Sonic Mega 8K S2?
By the numbers, the Anycubic Kobra S1 ACE 2 Pro Combo scores higher (8/10). But "better" depends on your use case, the Phrozen Sonic Mega 8K S2 may be the smarter buy if you need resin.
Which is better for beginners, Anycubic Kobra S1 ACE 2 Pro Combo or Phrozen Sonic Mega 8K S2?
The Anycubic Kobra S1 ACE 2 Pro Combo is more beginner-friendly (7/10 vs 4/10) with easier setup and a gentler learning curve.
Is the Phrozen Sonic Mega 8K S2 worth $250 more than the Anycubic Kobra S1 ACE 2 Pro Combo?
The Anycubic Kobra S1 ACE 2 Pro Combo actually scores higher (8/10) despite costing $250 less. The Phrozen Sonic Mega 8K S2 only makes sense if you specifically need resin.
What's the main difference between Anycubic Kobra S1 ACE 2 Pro Combo and Phrozen Sonic Mega 8K S2?
Technology: the Anycubic Kobra S1 ACE 2 Pro Combo is FDM (filament) and the Phrozen Sonic Mega 8K S2 is RESIN (resin). FDM prints bigger functional parts; resin delivers finer surface detail.