High tech describes advanced technology that uses cutting-edge scientific knowledge and complex engineering. High tech inventions include smartphones, robots, medical imaging machines, and spacecraft. These devices rely on sophisticated electronics, computer programming, and materials that didn't exist a few generations ago.

The term comes from “high technology” and compares new, advanced inventions to older, simpler ones. A regular mechanical clock is low tech, while a smartwatch that tracks your heartbeat and connects to satellites is high tech. A paper map is low tech, while GPS navigation is high tech.

High tech products often do things that once seemed impossible or magical. Your grandparents might remember when computers filled entire rooms, yet now you carry a high tech computer in your pocket that's millions of times more powerful. High tech medicine lets doctors see inside the human body without surgery. High tech manufacturing uses robots and lasers to build things with incredible precision.

The phrase can also describe industries and companies that create these advanced products. Silicon Valley became famous as a high tech hub where engineers and inventors develop new software and electronics. When someone works in high tech, they're usually involved in creating or improving computers, software, telecommunications, or other modern innovations.

Something high tech today might seem ordinary tomorrow. That's how fast technology advances.