G-Shock GBA900UU-5A Watch Black

Brains and brawn — you can count on the GBA-900 line for rugged CASIO WATCHES toughness with smartphone connectivity. Access your smartphone GPS via Bluetooth® for precision accelerometer measurement. Use your smartphone to take initial measurements of specific spans, then leave it to the timepiece to accurately measure these distances on its own. Get all the info you need — distance, speed, pace, and calories burned, as well as auto lap readings to keep track of running times for set distances. Download the app to control watch settings, manage workouts, and check activity history. Displays five stages of exercise intensity and tracks progress against the workout goals you set.