The new GBX100 models are the latest additions to the G-LIDE lineup of G-SHOCK sports watches, which are a favorite choice among the world's top surfers. These new models come with the ability to display information required by surfers (high tide and low tide times and levels), and to use a phone application for simple selection of one of approximately 3,300 locations around the globe. This insane watch also features an LED backlight (Super illuminator), auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow, Bluetooth smartphone link and step tracker. Water resistant 200m.