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  3. MK3 15W vs Ray7S 20W

Algolaser MK3 15W vs Longer Ray7S 20W

What MK3 15W does better (1) and where Ray7S 20W wins (2) — every spec side by side.

Algolaser MK3 15W
Algolaser · 2026MK3 15W
7.4Score
1 advantage≈ US$310
vs
Longer Ray7S 20W
Longer · 2026Ray7S 20W
8.8Score
2 advantages≈ US$530
Higher score
7.0Power & cutting7.7
4.9Safety8.3
8.2Features & ease of use6.9

Why is MK3 15W better than Ray7S 20W?

  1. Built-in cameraYes · Ray7S 20W: No

Why is Ray7S 20W better than MK3 15W?

  1. Enclosed (fully covered)No · MK3 15W: Yes
  2. Laser output power15 W vs 20 W+33%
Specifications

Side by side

Algolaser MK3 15WAlgolaser MK3 15W≈ US$3107.4
Longer Ray7S 20WLonger Ray7S 20W≈ US$5308.8
General
Laser sourcesBlue diode (≈455 nm)Blue diode (≈455 nm)
Motion systemGantry (XY rails)Gantry (XY rails)
Two laser sourcesNoNo
Laser power
Laser output power15 W20 W
Work area
Work area—305 × 310 mm
Work area width (X)—305 mm
Work area depth (Y)—310 mm
Work area (surface)—946 cm²
Work-area extension kitYes—
Speed & cutting
Max engraving / travel speed—600 mm/s
Precision
Laser spot size—0.06 mm
Safety
Enclosed (fully covered)NoYes
Laser safety class—Class 1 (eye-safe, enclosed)
Flame / fire detectionNoNo
Built-in fume filter / purifierYes—
Features
Air assistYesYes
Built-in cameraYesNo
Autofocus / auto heightNoNo
Rotary attachment supportYes—
Touchscreen / control panelYes—
Offline engraving (no computer)—Yes
Connectivity & software
Connections—Wi-Fi
Wi-Fi—Yes
Compatible softwareLightBurn—
LightBurn compatibleYes—
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