Compact G-Shock GD-B500 with Bluetooth and step tracker is 。Casio G-Shock Gd-B500 White Digital Bluetooth Step Tracker Watch Nwt White. This item works fine, the display his difficult to capture with the camera. - Case size (L × W × H): 46.3 × 41.5 × 11 mm - Weight: 45 g - Case and bezel material: Resin - Band: Resin Band - Construction: Shock Resistant - Water resistance: 200-meter water resistance - Time adjustment: Bluetooth: Connects to a smartphone and automatically adjusts the time - Power supply and battery life: Approx. battery life: 2 years on CR2016 Stock Image may be used for one photo, remaining photos are of the product you will actually receive. If band is not adjustable, it is not guaranteed to come with extra links or bands to increase band size unless shown in images.