Some days before I have purchased a smartwatch which works by connecting the bluetooth that is Medulla U8 I have buy it from online the function in it does not work properly its features are a type of duplicate it always hangsup when it is in use and when working on it call does not be recieved and the camera quality is also not good comparing to other smart watches yhe image comes black and the display of the watch not so clear even seeing in the sun and weight is less not having so functions comparing to other smartwatches