The Anycubic Kobra S1 and Qidi Tech Plus4 are cross-brand rivals: both are prosumer-tier printers, listed $200 apart. Note that the Plus4 has been replaced by the Plus5 and is no longer sold new. Both are enclosed CoreXY printers with 4-slot multicolor, a 600 mm/s rated top speed and automatic calibration. The Plus4 costs $200 more and gets you 67% more build volume and extra engineering materials (PA-CF, PC and PPS-CF).
First-generation product — no release history to base predictions on
Best for: Makers who want an enclosed multicolor CoreXY at a prosumer price for PLA, PETG, ABS, and ASA — and prefer the Anycubic ecosystem. For reliable PA or PC printing, consider the Kobra S1 Max or Qidi Q2 which offer active chamber heating.
Full details →This printer is no longer sold new. It has been replaced by the Qidi Tech Plus5.
Best for: Makers and small businesses who need a large enclosed build volume for engineering materials at a prosumer price — particularly those printing PA-CF, ABS, and PC at scale. Look for clearance deals — the Plus5 is the current model.
Full details →| Anycubic Kobra S1 | Qidi Tech Plus4 | |
|---|---|---|
| Pricing | ||
| Starting Price | ★ $499 | $699 |
| Print Specs | ||
| Tier | Prosumer | Prosumer |
| Motion | CoreXY | CoreXY |
| Build Volume | 250 × 250 × 250 mm | ★ 305 × 305 × 280 mm |
| Max Speed | 600 mm/s | 600 mm/s |
| Multicolor | ✅ 4 slots | ✅ 4 slots |
| Enclosure | ✅ | ✅ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ❌ | ❌ |
| Upgrade Kit | — | — |
| Buy Timing | ||
| Released | Feb 11, 2025 | Sep 20, 2024 |
| Cycle length | — | ~408 days |
| Cycle advice | Caution | Superseded |
| Deals advice | Buy | Clearance |
| Next model | — | — |
The Kobra S1 was released on Feb 11, 2025, 639 days ago. It is a first-generation product, so there is no earlier cycle to predict its successor from.
The Plus4 has been replaced by the Plus5 and is no longer sold new, so there is no release cycle left to time — any unit you find now is leftover or second-hand stock.
On timing alone, the Kobra S1 is the safer buy right now — it has no release history pointing to a successor yet, while the Plus4 has already been replaced by the Plus5.
Cycle and deal status as of November 12, 2026. See the launch calendar →
The Kobra S1 lists at $499 and the Plus4 at $699 — $200 apart, so the Plus4 costs 40% more.
Per litre of build volume, that works out to $32 for the Kobra S1 versus $27 for the Plus4 — so the pricier Plus4 actually gives you more build space per dollar.
Buy the Kobra S1. The Plus4 has already been replaced by the Plus5 and is no longer sold new, so it is only worth considering at a clearance price. If the Plus4 appealed to you, the fair comparison today is the Kobra S1 against the Plus5.
Compare Anycubic Kobra S1 vs Qidi Tech Plus5 →
How we judge timing and deals: read our methodology →
The Kobra S1 combines an enclosed build chamber with 600 mm/s CoreXY motion — offering improved heat retention over open-frame printers for ABS and ASA.
Brings Anycubic's value-focused approach to the enclosed CoreXY segment — competing with the Qidi Q2 and Bambu P2S, with multicolor and filament drying included at $499.
A practical cubic build volume well-suited for functional mechanical parts, enclosures, and prototypes.
One of the largest build volumes in the prosumer enclosed category — 40% more printable area than the Bambu X1C at a lower price point.
The second-generation active heating delivers consistent chamber temperatures for PA, PA-CF, ABS, ASA, and PC with minimal warping across the full build plate.
Handles high-performance engineering composites including PA-CF, PET-CF, and PPS-CF without requiring a separate hotend upgrade.