The perfect blend of effortless style and modern technology, the Runway Smartwatch has chronograph functionality that enables access to an integrated Activity Tracker, that acts as both pedometer and sleep tracker, as well as to an alarm, dual time zone and alert system. This model boasts a silver and rose tone theme. - Case Width: 41mm - Watch Movement: Quartz - Water Resistant: 30 metres To avoid damage to your watch, only use with included charger. Do not use a USB hub, USB splitter, USB y-cable, battery pack or other peripheral device to charge.