The world’s first wearable wasn’t exactly what you’d call practical. It was invented in the early 1960s by two mathematicians, Edward Thorp and Claude Shannon. They created a computerized timing device that helped them cheat in roulette. The device was so tiny that during the game, half of it was hidden in a shoe and the other half in a pack of cigarettes. Since then, wearables have come a long way – they’ve transitioned from “gadgets” to must-have devices that manage our health, productivity, and safety.