This g-shock move solar-powered watch from casio is smaller and lighter with a curved-back cover, making it ideal for all-day wear. The 52. 6mm case has an easy-to-read black dial and mineral crystal a dedicated app allows wearers to check their fitness levels and training progress and automatically create training plan equipped with functions that are useful for working out, including an optical heart rate sensor, a step-count accelerometer and sensors that detect orientation, altitude/atmospheric pressure, and temperature the gps function also measures running distance, speed and pace molded buttons offer superior operability and the high-definition mip lcd gives great visibility the navy urethane strap secures with a buckle clasp supports both usb and solar charging