The Bambu Lab P1S (prosumer) and Qidi Tech Max4 (professional) 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. Note that the P1S has been replaced by the P2S and is no longer sold new. Both are enclosed CoreXY printers with 4-slot multicolor and automatic calibration. The Max4 costs $500 more and gets you 208% more build volume and a top speed of 800 mm/s (vs 500).
This printer is no longer sold new. It has been replaced by the Bambu Lab P2S.
Best for: Makers who need an enclosed printer for ABS, ASA, PA, and PC at prosumer price — now available at clearance pricing after P2S launch.
Full details →First-generation product — recently released, still early days
Best for: Professional makers and small studios who need the maximum enclosed build volume in Qidi's lineup for large engineering parts, architectural models, or batch production — at a price point below the Bambu H2S.
Full details →| Bambu Lab P1S | Qidi Tech Max4 | |
|---|---|---|
| Pricing | ||
| Starting Price | ★ $549 | $1,049 |
| Print Specs | ||
| Tier | Prosumer | Professional |
| Motion | CoreXY | CoreXY |
| Build Volume | 256 × 256 × 256 mm | ★ 390 × 390 × 340 mm |
| Max Speed | 500 mm/s | ★ 800 mm/s |
| Multicolor | ✅ 4 slots | ✅ 4 slots |
| Enclosure | ✅ | ✅ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ❌ | ❌ |
| Upgrade Kit | — | — |
| Buy Timing | ||
| Released | Jul 5, 2023 | Dec 1, 2025 |
| Cycle length | ~335 days | — |
| Cycle advice | Superseded | Buy |
| Deals advice | Clearance | Buy |
| Next model | — | — |
The P1S has been replaced by the P2S and is no longer sold new, so there is no release cycle left to time — any unit you find now is leftover or second-hand stock.
The Max4 was released on Dec 1, 2025, 346 days ago. It is a first-generation product, so there is no earlier cycle to predict its successor from.
On timing alone, the Max4 is the safer buy right now — it launched only 346 days ago, while the P1S has already been replaced by the P2S.
Cycle and deal status as of November 12, 2026. See the launch calendar →
The P1S lists at $549 and the Max4 at $1,049 — $500 apart, so the Max4 costs 91% more.
Per litre of build volume, that works out to $33 for the P1S versus $20 for the Max4 — so the pricier Max4 actually gives you more build space per dollar.
Buy the Max4. The P1S has already been replaced by the P2S and is no longer sold new, so it is only worth considering at a clearance price. If the P1S appealed to you, the fair comparison today is the Max4 against the P2S.
Compare Bambu Lab P2S vs Qidi Tech Max4 →
How we judge timing and deals: read our methodology →
Active chamber temperature control enables reliable ABS, ASA, PA, and PC printing without warping.
500 mm/s print speed with Bambu's vibration compensation delivers fast, accurate prints.
With the P2S released, P1S prices are at their lowest — an opportunity for budget-conscious buyers.
The Max4 offers the largest build volume in Qidi's lineup — enabling large functional parts, architectural models, and production batch runs that exceed Plus5 capacity.
The Max4's closed-loop XY adds positional feedback for improved accuracy at high speeds — a differentiating feature at this price tier that reduces dimensional errors on large prints.
Qidi's proven active chamber heating technology scaled to a 390×390 mm bed — critical for consistent ABS, ASA, PA-CF, and PPS-CF results across the full build plate.