ComMarker B6 20W Fiber Laser Engraver vs GWEIKE G2 20W Fiber Laser Engraver
Head-to-head spec comparison to help you pick the right fiber laser for your needs.
ComMarker
$1,599
GWEIKE
$1,299
Verdict
It's a Tie
The ComMarker B6 20W Fiber Laser Engraver and GWEIKE G2 20W Fiber Laser Engraver are evenly matched — your choice depends on which features matter most to you.
Spec-by-Spec Comparison
| Spec | ComMarker B6 20W Fiber Laser Engraver | GWEIKE G2 20W Fiber Laser Engraver |
|---|---|---|
| Wattage | 20 W | 20 W |
| Laser Type | Q-Switched | Q-Switched |
| Laser Source | Raycus | Raycus |
| Work Area (W) | 150 mm | 110 mm |
| Work Area (H) | 150 mm | 110 mm |
| Galvo Speed | 8000 mm/s | 15000 mm/s |
| Color Marking | No | No |
| LightBurn | Yes | Yes |
| Autofocus | Yes | No |
| Weight | 3.5 kg | 2.5 kg |
| Software | LightBurn + EZCad | LightBurn + EZCad2 |
| Pulse Width | N/A (Q-Switched) | N/A (Q-Switched) |
| Price | $1,599 | $1,299 |
| Rating | 8.0/10 | 7.8/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
ComMarker B6 20W Fiber Laser Engraver
Pros
- 150×150mm work area — 35% larger than the GWEIKE G2's 110mm field — fits tumblers on a rotary chuck and full knife blades without repositioning
- The current title identifies an autofocus screen, a meaningful workflow distinction from manual-focus 20W alternatives
- LightBurn confirmed working with EZCad also included — both workflows supported; buyers coming from diode lasers have immediate LightBurn continuity
- Built-in touchscreen display for settings and job status — removes the need to monitor a laptop during production runs
- 20W Raycus Q-switched marks steel, aluminum, brass, titanium, and copper consistently — ComMarker's production volume means quality control is verified across thousands of units
Cons
- Cataloged as Q-switched rather than MOPA; compare a currently available MOPA configuration when pulse-width control is required
- No enclosure — Class 4 open-beam fiber laser; the invisible 1064nm infrared beam requires OD5+ eyewear and either a dedicated enclosure or a controlled workspace with no reflective surfaces
- Thinner community than GWEIKE — fewer Reddit threads and YouTube settings tutorials; troubleshooting depends more on ComMarker support channels than community knowledge
- The current title does not confirm an included rotary; verify the exact bundle before planning cylindrical work
GWEIKE G2 20W Fiber Laser Engraver
Pros
- LightBurn workflow support is documented in the broader review evidence; confirm the current controller and license requirements with the seller
- The listing title carries a 15,000mm/s speed claim, but buyers should compare real-job evidence rather than infer throughput from catalog speed alone
- Raycus 20W source with documented reliability in knife-marking communities — a dedicated Italian cutlery review site (coltellimania.com, 14k views) independently validated the G2 for blade work
- 110×110mm work area covers rings, blade sections, small plaques, and coin marking without repositioning or compromising mark quality
- Active settings ecosystem: YouTube tutorials, LightBurn forum threads, and community settings libraries are indexed for the G2 specifically — problems you hit have been solved publicly
Cons
- Power-loss mid-job defect documented on LightBurn forum (June 2025) — mid-engraving power drop reported on some units; a workaround exists in settings but not every owner encounters it
- Customer service is WhatsApp-only with slow US response times — if something goes wrong, you are on your own until business hours in China; not viable for production-critical downtime
- Focus height calibration is poorly documented — community consensus is to calibrate by burn quality and sound rather than ruler measurement; GWEIKE's manual understates this complexity
- 110×110mm work area rules out tumblers and anything wider than a palm — if typical work pieces are over 100mm, step up to the ComMarker B6 (150mm field)
- No color marking — Q-switched laser cannot produce oxidation colors on stainless steel regardless of settings
Our Verdicts
ComMarker B6 20W Fiber Laser Engraver
The ComMarker B6 is the 20W option to compare when a 150mm field and autofocus matter more than MOPA pulse control. The verified Amazon offer was $1,599 on July 10, 2026. That price removes it from any under-$600 decision path. If color work is required, compare an available MOPA configuration instead of following the currently unavailable OMTech 30W exit.
GWEIKE G2 20W Fiber Laser Engraver
The GWEIKE G2 20W is the stronger 20W option for a buyer who prioritizes LightBurn continuity and public setup resources. Its 110mm field still limits larger work. The verified Amazon offer was $1,299 on July 10, 2026, so the old $499 value comparison is no longer a valid reason to buy. Compare its exact current configuration and support terms with the similarly priced Monport 20W before checkout.