The Casio G-Shock GBA-800-8AER is a hybrid watch for men. Connect the watch to the G-shock Connected app on your smartphone via Bluetooth. This gives you access to different smart functions. You can use your smartphone to set timers for your interval trainings or view the graphs of your workout achievements. The circle at the top right of your watch shows the progress of your step count goal. You can also view calories burnt, the day of the week, and the date. The watch is 20ATM waterproof, which means you can wear this watch when swimming or snorkelling.