Materialsilicone sim card typeno sim card slot connectivityother fitness wellnesscalendar chronograph alarm clock stopwatch charging timeh0 water resistance depth50m waterproof levelipx 8 typesmartwatch featuresmultifunction long standby water resistant water proof modelyy1219 screen typedisplay technologyled packing listbody english and chinese manual listing date06012017 production modeexternal produce