xtool-s1 40W vs 1064nm Infrared: An Honest Buyer's Comparison

I manage purchasing for a ~150-person company. When our signage and custom products team wanted to add laser capability, I got the request. Fair enough—I buy things.

The options? The xtool-s1 platform with its interchangeable modules. The two most popular picks were the xtool s1 40w laser and the xtool s1 1064nm infrared laser module. I compared both against the actual materials we work with. Here's what I found—direct comparison, no marketing fluff.

The comparison framework (and why your first instinct is probably wrong)

Most people compare laser modules by looking at wattage. 40W sounds way more powerful than the infrared module's 2W. That's almost exactly the wrong way to think about it.

Wattage tells you power. It doesn't tell you what material each wavelength is actually good at working with. And when you're comparing the xtool-s1 40W against the 1064nm infrared module, wavelength matters more than raw wattage.

Everything I'd read about laser power said higher wattage always equals better performance. In practice, the 40W module handled maybe 70% of our workload—but there were specific metal jobs it just couldn't do, and the infrared module ate those for breakfast. It's not a power comparison. It's a different-tool comparison.

Material coverage: the 40W wins on range, but read the fine print

The xtool-s1 40W diode laser cuts and engraves:

• Wood (up to roughly 15mm depending on species)
• Acrylic (up to about 12mm)
• Leather, fabric, paper
• Glass (engraving only, with coating)
• Coated metal (marking only)
• Ceramic

The 1064nm infrared module handles:

• Bare metal (stainless, aluminum, brass) — marking, not cutting
• Certain plastics (ABS, PC—depends on formulation)
• Fine metal detail work

Here's where most buyers focus on the obvious factor and completely miss the overlooked one: diode lasers (blue light, ~450nm) are terrible on bare metal because the metal reflects blue light. The infrared laser works because metal absorbs 1064nm wavelength differently. That's physics, not marketing.

Bottom line: if you cut wood, acrylic, or leather, the 40W wins. If you mark bare metal, the infrared module is the only one that'll do it.

Cutting vs marking—not a fair fight

The 40W diode cuts and marks. The 1064nm infrared module mostly marks—it can cut some thin materials but that's not its strength.

If cutting is core to your business, the 40W is the only logical choice. The infrared module is something you add after you already have a diode laser. I bought mine as a companion, not a replacement.

Most buyers focus on "can this cut metal" and completely miss that cutting and marking require completely different power and speed settings. I've watched people buy a 40W and expect to cut stainless. It doesn't work that way. The 40W diode will mark stainless (with a coating), but deep cutting is a whole different machine class.

Cost: the hidden factors you don't budget for

xtool-s1 40W laser: roughly $2,000-2,600 depending on bundle (air assist, rotary, etc.)
1064nm infrared module: around $1,000-1,400 as a standalone add-on

But upfront cost isn't the whole story.

People think expensive laser modules deliver better quality. Actually, modules that are good at specific materials can charge more—the causation runs the other way. The infrared module costs more because it does a specific job the diode can't, not because it's universally "better."

Things I learned the expensive way:

• The infrared module marks much slower (3-5x slower, in my experience)
• Consumables need specific material—not all metals mark the same
• Learning curve is real: settings that work on one alloy won't on another

I'm not 100% sure the infrared module was worth the full price for us. It's been useful for maybe 5-8 jobs a month. That's still worthwhile—but the sales pitch made it sound like I'd use it daily. I don't.

When "laser" means something completely different

In 2024, someone from our wellness committee asked whether we could get a laser machine for face or a medical grade lipo laser machine through the same purchasing channel.

I shut that down immediately. Here's why it matters for anyone managing procurement:

• Medical and aesthetic laser devices fall under FDA-regulated device categories. They require completely different vendor qualification.
• The word "laser" is doing a lot of heavy lifting. A 40W diode laser for signage and a face laser machine share almost nothing except the name.
• Per FTC guidelines on advertising, medical device claims like "fat reduction" need clinical substantiation. A laser that engraves wood doesn't need that kind of evidence.

I trust a vendor who says "that's not our strength—here's who does it better" for everything else. A supplier who claims to handle signage lasers and medical aesthetics is either overpromising or misunderstanding both categories.

So I mentally file laser requests into three buckets:

1. Fabrication lasers (xtool-s1 ecosystem) — wood, acrylic, leather, metal marking
2. Medical/aesthetic lasers — FDA-regulated, clinical evidence required, completely different vendor
3. Industrial cutting lasers — high-power CO₂ or fiber, entirely different price point

If someone asks you to buy a "laser machine for face" through the office supplies budget, that's a sign they haven't understood the categories. Say no politely and route it to whoever handles medical device procurement.

What about the creative side?

The "cool laser cut ideas" searches were popular for a reason. Before I bought anything, here's what our team wanted to make:

• Custom signage (acrylic and wood)
• Leather notebooks and accessories
• Glassware etching (with coating)
• Stainless steel tags and plates (infrared module)

None of that required a medical-grade laser. None of it needed a CO₂ system either. The xtool-s1 with both modules covered everything on the list.

My recommendation

Buy the 40W diode if:

• You cut wood, acrylic, leather, or paper
• You engrave glass or ceramic
• You want maximum material range
• Your budget is in the $2,000-2,600 range

Add the 1064nm infrared module if:

• You mark bare metal (stainless, aluminum, brass)
• You need fine metal detail work
• You've already confirmed metal marking is part of your workflow

If you need a medical laser, don't call xtool:

• Face lasers, lipo lasers, and similar medical/aesthetic devices are FDA-regulated
• But also make sure the person asking knows the difference between engraving lasers and medical lasers—they almost certainly don't

The xtool-s1 with both modules ended up covering 95% of what we needed. The remaining 5%—that's where specialized suppliers earn their keep. Knowing what you don't do well is just as important as knowing what you do.

"The vendor who said 'this isn't our strength—here's who does it better' earned my trust for everything else. I'd rather work with a specialist who knows their limits than a generalist who overpromises."