Watches are portable timekeeping devices designed to be worn on the wrist (wristwatches) or carried in a pocket (pocket watches). They display time through analog (hands and dial) or digital (numeric display) formats. Modern watches often include additional features like date displays, chronographs, alarms, and smart capabilities (fitness tracking, notifications). They serve both functional and fashion purposes, with styles ranging from luxury mechanical watches to sporty digital models and high-tech smartwatches.