Material:alloy,ABS,siliconeleather/steel,electroniccomponents Functions:stepcounting,smartreminder,remotecontrolselfie,informationpush,audioandvideoentertainment,mobilepositioning,sportstracking,socialentertainment,healthmonitoring,tracking/alarm,sleepanaly Supportedlanguages:English,Japanese,Korean,German,Spanish,French,Italian,Russian,Portuguese,Arabic,Chinese Compatiblesystem:Android,iOS