Michael Kors Women's 42mm Slim Runway Goldtone Hybrid Smart Watch Smartwatch that tracks activities and provides notifications. Auto Update Time & Date Technology meets jet-set style Case Diameter: 42mm Water resistant to 30m (100ft): in general, withstands splashes or brief immersion in water, but not suitable for swimming or bathing.Remote Control Activation Compatibility:Android OS 4.4+ or iPhone 5/iOS 8.2+; Battery Life:Up to 6 months ; Included Accessories:Quick Start Guide, Warranty, Case Back Tool microcontroller