Atomstack A5 Pro vs Longer Ray5: Which One Should You Buy?

atomstack a5 pro vs longer ray5 side by side

Specifications are manufacturer rated, as published on each listing and collected 1 November 2026.

Power and cutting

The Longer example lists a 40W laser module. The Longer example lists a maximum engraving speed of up to 24,000mm/min. The Longer example lists single-pass cutting of 20mm pine wood, 0.15mm stainless steel, and 15mm acrylic. The Longer example lists multiple-pass cutting of up to 40mm wood and 50mm acrylic.

The ATOMSTACK example lists a 5W laser output in its title. The ATOMSTACK example lists an engraving speed of up to 400 mm/s. The ATOMSTACK example lists a spot size of 0.06 x 0.08 mm. The ATOMSTACK example lists no cutting thickness figure, so no cutting comparison is possible on thickness.

Power figures are stated differently across the listings, so read them as listed. The Longer listing names a 40W module, with no optical output figure stated separately. The ATOMSTACK listing names 5W in its title, while its bullets also name a power equivalent to 60000 mW, so the ATOMSTACK power figure is stated in more than one way. Speed figures also use different units across the listings, so no direct speed comparison is made here.

Workspace and speed

The ATOMSTACK example lists a work area of 400 x 400 mm. The Longer example lists a work area of 385 x 385 mm. On the stated mm figures, the ATOMSTACK area is larger.

The Longer example lists a 3.5-inch touchscreen for monitoring progress and adjusting parameters. The Longer example lists USB, TF card, Wi-Fi, and app connectivity for online and offline operation. The ATOMSTACK example lists Type-C and USB cable control. The ATOMSTACK example lists no touchscreen and no Wi-Fi figure.

Materials and software

The ATOMSTACK example lists wood, leather, coated metal, and stainless steel. The ATOMSTACK example lists its own app and PC software, plus LightBurn and LaserGRBL. The Longer example lists wood, metal, leather, acrylic, glass, and cotton fabric. The Longer example lists LaserGRBL, LightBurn, and its own LaserBurn software.

Neither listing suggests lasering PVC, vinyl, or polycarbonate, and those materials should not be lasered on either machine here. The Longer example lists a 256-color palette and a spot size of 0.1 x 0.15 mm, with engraving precision of up to 0.01mm as listed. The ATOMSTACK example lists point compression technology and a spot size of 0.06 x 0.08 mm.

Safety and enclosure

The Longer example lists a protective shield, a full protective enclosure, and safety goggles. The Longer example lists an emergency stop, motion protection, overheating protection, and a hidden active cooling system. The Longer example lists a shield that filters over 95% of laser radiation, as listed.

The ATOMSTACK example lists a removable magnetic laser protective cover. The ATOMSTACK example lists safety glasses included with the machine. Neither listing states a laser class. Neither listing states an OD or a wavelength range for the glasses or the shield, so rated eyewear protection stays unstated for both examples.

Choose the Longer Ray5 40W if

• You want a stated 40W module, a touchscreen, and a full enclosure.
• You want stated single-pass cutting figures for pine wood, stainless steel, and acrylic.
• You want USB, TF card, Wi-Fi, and app control with offline operation.

Choose the ATOMSTACK A5 Pro V2 if

• You want a stated 400 x 400 mm work area.
• You want a stated 1 Year Warranty and simple app and USB control.
• You want a beginner and hobbyist machine for wood, leather, coated metal, and stainless steel.

For more enclosed options, see best enclosed laser engraver.

FAQ: lasers and CNC

Which machine has the larger stated work area?

The ATOMSTACK example lists 400 x 400 mm. The Longer example lists 385 x 385 mm.

Can either cut thick wood in a single pass?

The Longer example lists single-pass cutting of 20mm pine wood. The ATOMSTACK example lists no cutting thickness figure.

Do either list a touchscreen?

The Longer example lists a 3.5-inch touchscreen. The ATOMSTACK example lists no touchscreen.

What warranty does each list?

The ATOMSTACK example lists a 1 Year Warranty. The Longer example lists a warranty entry of 1, with no term stated, so warranty stays unstated for that example.

What software do they list?

Both listings name LightBurn and LaserGRBL. The ATOMSTACK listing also names its own app and PC software. The Longer listing also names LaserBurn software.

Related: how to choose a laser engraver, best laser engraver for beginners, diode vs CO2 guide and the laser engravers hub.