Capacity mah320 materialsilicone sim card typeno sim card slot connectivityir fitness wellnesscalendar chronograph alarm clock stopwatch timer charging timeh0 water resistance depth30m waterproof levelipx 8 typesmartwatch featuresmultifunction long standby water resistant water proof modelyy9128 supported operation systemother screen typedisplay technologylcd stand by timeh480 packing listenglish and chinese manual body listing date05232017 productio