For example, computer cars and smartphones can be classified as Level 2 technology. Virtual web access pods, metal exoskeletons, bullet guns, and mining ships are also considered Level 2 technology.
Level 3 technology is defined by enhancement. The same prosthetic arm allows for normal life at Level 1, adds some engineering tools, network link lines, impact drills, screwdrivers, and jacks at Level 2. At Level 3, it can have Gauss rifles, rocket launchers, folding knives, and polymer lines; the output is greatly enhanced, and its combat power is almost comparable to Golden Core Stage cultivators.
Actually, Level 1, 2, and 3 civilian products are fully sufficient for ordinary people to traverse the multiverse. Legions, which pick up garbage, might use some Level 3 civilian products and modify them with Legion technology for weapon use. Legion items can generally be considered as Level 3.5.