Casio Men's G-SHOCK Sport Line G-SQUAD GBD-H2000-1AJR WatchProduct Highlights Equipped with features to enhance your workout experience, the GBDH2000 series offers GPS functionality for distance, speed, and pace tracking, an optical sensor for heart rate monitoring, an accelerometer for step counting, a gyroscope sensor for swimming stroke detection and turn judgment, as well as compass, altimeter barometer, and temperature sensors. This watch is designed for multi sport activities including running, cycling,