If you cannot choose which Atomstack S20 Pro or X20 Pro laser engraver to purchase,let me give you some advice.Laser Engraver Atomstack S20 Pro I couldn't cover my pleasure until now when I noticed that the year's most effective diode laser is now available as a complete package.
https://www.htpow.net/atomstack-s20-pro-laser-engraver

Are you thinking to buy a Laser Engraving machine? We are introducing a best Laser Engraver Cutter 2022 that is Atomstack S20 Pro Eye Protection Laser Engraver CNC Engraving Machine Laser Power 20W for you.
https://www.htpow.net/laser-engraving-machine

Atomstack S20 Pro vs X20 Pro: design
Atomstack , the well-known laser engraver producer, launched a tool known as S20 Pro on its official website. The machine claims to be the World's first 20W optical power laser engraver, which comes standard with the F30 Pro upgraded air assit kit.Atomstack X20 Pro 130W claims to be the World's first quad-core diode laser engraver,which equipped with a world's first quad-core laser module.
https://www.htpow.net/atomstack

Atomstack S20 Pro vs X20 Pro: features
We realized that the S20 Pro laser cutter has machine energy of 130W, and an important laser output power is 20W. Atomstack Labs shows that it might probably be able to cut off 12-15mm thick tungsten board as well as the 8mm thick black acrylic board with only one pass, and even cut the 0.05mm thick stainless steel sheet.

ATOMSTACK S20 Pro is the primary 130W semiconductor laser engraving machine, which uses the latest four 6W laser coupling expertise technology to provide the output energy soars to 20W, and the tight spot is lowered to 0.08mmx0.1mm dimension,it can cut 12mm Solid wood and 8mm Acrylic Cutting in One-PASS,even cut 0.05mm thin sheet metal.
Atomstack S20 Pro vs X20 Pro: my opinion
In fact, the functions and parameters of the two machines are similar, and even the price is similar. The Atomstack s20 pro laser engraver is slightly more expensive, but the sintering temperature of the Atomstack S20 PRO is twice that of the Atomstack X20 Pro. You can buy according to your own needs.