As the name implies, a sports watch is a watch suitable for people to wear when exercising. Therefore, the most obvious characteristics of sports series watches are multi-function and large and heavy case; Secondly, its "three defenses" performance (waterproof, antimagnetic and shockproof) is much better than other series. Sports watches are also divided into different types, such as flying, mountaineering, running, diving and so on. Different types of sports watches have different designs and functions.