Bambu Lab X1C vs P1S: Is the Upgrade Worth It?

Quick Verdict

If you're printing PLA, PETG, or ABS, get the P1S at $399 and don't look back. Print quality on standard materials is identical: same CoreXY kinematics, same 500 mm/s, same ~24-minute Benchy. The X1C only makes sense if you regularly work with PA-CF, polycarbonate, and composites — LiDAR calibration and the hardened nozzle genuinely save time with engineering materials.

Important context: the X1C is discontinued. Buying new is nearly impossible, and used units go for $500–700. The P1S is actively sold, receives firmware updates, and has guaranteed support. For 90% of users, the P1S is the rational choice. Let's break down why.

Full Specs Comparison

Build Quality & Construction

The build quality gap is obvious the moment you place them side by side. The X1C features aluminum side panels, carbon fiber rods, and an overall "precision instrument" feel. The P1S has a steel frame with plastic panels — functionally solid, but subjectively less premium. Both share a steel frame, and the P1S has more than enough rigidity for any standard material. Ringing or ghosting differences at normal speeds? Non-existent.

The X1C wins on details: hardened steel gears and nozzle out of the box (vs stainless steel on the P1S), engineering plate included, internal storage instead of relying on microSD. There's a chamber thermistor for temperature monitoring — a small touch that matters when printing ABS or PA. It even has an optional Ethernet port.

Here's the thing though: upgrading the P1S nozzle to hardened steel costs $15. Gears are also cheap to swap. Engineering plate? Another $30–40. So out of the X1C's "construction" advantages, only the aluminum chassis and internal storage are truly unique. For some users that matters; for most, it doesn't.

Print Quality

The big question — and the big surprise for many. On PLA, PETG, and ABS, print quality is absolutely identical. Same CoreXY kinematics, same speeds, same Bambu Studio profiles. Print the same model on both with the same settings and you won't see a difference with the naked eye. This is confirmed by reviewers, owners of both printers, and even print farm operators running 18+ machines.

Where the X1C genuinely shines is engineering materials. PA-CF, PA-GF, polycarbonate right out of the box: the hardened nozzle won't wear from carbon fiber, the engineering plate provides adhesion, and LiDAR corrects Z-offset in real time at 7 μm resolution. All of this is also possible on the P1S — but you'll need a nozzle upgrade ($15), a separate engineering plate, and manual calibration (~45 minutes per new filament). The gap isn't "can vs can't" — it's convenience.

An interesting data point from the Bambu Lab forum: one user got better quality on the P1S than the X1C. Same STL, same settings, same spool — P1S consistently better across 20+ prints. The culprit? Miscalibrated k-factor on the X1C. The lesson: more expensive doesn't automatically mean better; both machines need proper tuning.

Calibration & LiDAR

The X1C's 7 μm LiDAR is one of the main reasons people pay the premium. It automatically calibrates pressure advance, scans the first layer, and corrects Z-offset in real time. If you frequently swap filaments and experiment, LiDAR saves hours. One forum user summed it up: "throw a random filament in, test and tweak, all within seconds." For beginners who don't want to learn manual calibration, it's a genuinely significant advantage.

The P1S requires manual flow rate and pressure advance calibration for every new filament — about 45 minutes of work. But there's a catch: Bambu Studio offers shared profiles for hundreds of popular filaments, which substantially reduce the need for manual calibration. If you print with the same 2–3 plastics regularly, LiDAR is literally unnecessary. Another caveat often overlooked: LiDAR doesn't work on textured plates — only smooth ones.

Print Speed

Simple: it's a dead tie. Both machines do 500 mm/s with 20,000 mm/s² acceleration on CoreXY kinematics. Benchy in ~24 minutes on both. Maktra Equipment notes the X1C is "slightly better on fine detail thanks to firmware and LiDAR," but in practice the difference is unmeasurable. If you're choosing between them for speed alone — don't. They're the same.

Noise

On paper the X1C is quieter — 50 dB vs 55 dB for the P1S (official standard mode specs). In practice, at full speed both hit about 72 dB — vacuum cleaner territory. The sharp clack when the print head changes direction is audible on both. Neither belongs in a bedroom. If noise is a dealbreaker, look at the P2S (65 dB) or the A1 Mini (49 dB).

Software, Camera & Controls

Both machines work with Bambu Studio and OrcaSlicer, support AMS (up to 16 colors), cloud printing, and Wi-Fi. The software ecosystem is identical. The differences are in the hardware side of control and monitoring.

The X1C camera is 1080p at 30fps with AI spaghetti detection and automatic pause. Actually usable video for remote monitoring. The P1S camera? 720p at 0.5fps (half a frame per second!) with no AI detection. That's a slideshow, not video. For a print farm where machines run unattended, the X1C camera is a serious advantage. If you print nearby and can visually check on things, the P1S camera is sufficient for basic monitoring via Bambu Handy.

The X1C display is a 5-inch color touchscreen with full control: filament selection, AMS management, file preview, exclude_object — all without a PC or phone. The P1S has a 2.7" mono screen with physical buttons for basic operations. That said, most users control their printer through Bambu Studio, and the screen is rarely used. As one farm owner put it: "$500 for a touchscreen that does the same thing as your phone... is a lot."

Price & Value

Since February 2026, the P1S costs $399 (solo) and $549 (with AMS) — down from $699, a 43% price cut. The discontinued X1C goes for $999–1256 new (if you can find one) or $500–700 used on eBay and refurbished. The gap has narrowed: the difference between a used X1C and a new P1S is only $100–300. But factor in used-market risks: unknown wear, no warranty, unpredictable remaining lifespan. Refurbished units pop up on MatterHackers and Micro Center, but availability is unpredictable.

For print farms, the P1S is the no-brainer choice. According to JCSFY, "P1S-class fleets typically outperform 'latest-and-greatest everywhere' strategies on business metrics that matter." Lower capital costs let you scale fleet size faster, and years of real-world use give you predictable failure patterns. The X1C makes sense for one-off prototyping, not serial production. There's also the support angle: the P1S is actively sold and receives firmware updates, while the X1C's long-term support post-discontinuation is an open question. Parts are available now, but for how long?

Verdict: Who Should Buy What

Get the P1S if you print PLA, PETG, ABS, or TPU — that's 95% of users. If it's your first CoreXY, the $399 price point is unbeatable. If you're building a print farm, scale cheaper. If you control your printer through Bambu Studio or OrcaSlicer, the screen and LiDAR don't matter. PA-CF and PC are possible on the P1S too — just grab a $15 nozzle upgrade and do manual calibration.

Get the X1C (used) if you regularly experiment with different filaments and LiDAR calibration will genuinely save you hours. If remote monitoring matters — 1080p at 30fps vs a 0.5fps slideshow is a real difference. If you value premium construction and are willing to take the risk on a used unit at $500–700 (discontinued printer, long-term support uncertain).

And if you want a touchscreen and a proper camera but don't want the used-X1C gamble, check out the P2S at $549: 1080p camera, DynaSense servo, touchscreen, 65 dB noise, and quick-swap nozzles. The P2S doesn't have LiDAR, but for most workflows that's not a problem.

Sources

• ADP Industries — Bambu Lab X1C vs P1S vs P2S: 2026 Buyer's Guide
• 3DToday — Comparing X1C and P1S: Real Owner Experience
• MatterHackers — Comparison Guide: P1S, X1 Carbon and X1E
• Bambu Lab Forum — P1S vs X1C: Is the Upgrade Worth It?
• JCSFY — Bambu Lab Printers in Production (2026)
• Ralph's Way — Bambu Lab P1S vs X1 Carbon
• CvetMir3D — Comparing Bambu Lab P1S, X1 Carbon, X1E
• Maktra — X1C vs P1S: Which Speed Demon Is Worth Your Money?
• 3D Printed Decor — P2S vs P1S vs X1C: 600-Hour Test
• Bambu Lab Forum — Better Print Quality on P1S? Side by Side Examples