Featuresgps languagesenglish whats in the boxusb cable user manual english supported operating systemsandroid materialssilicone typesmart bracelet capacity mah80 3ggsm 90018001900mhz sim card typeno sim card slot connectivitynfc smartphone assistantmedia control fitness wellnessalarm clock stopwatch timer heart rate monitor sleep tracker activity tracker entertainmentaudio display sizeinch045 screen resolutionpx240240 pixe screen typedisplay technolo