Vivo is the brand which I have started to use as the the product of vivo was y11 was the first mobile of mine and its was the best product till I have been used the best quality was given by the vivo and now I have been switched to vivo y12 its is the best mobile till now good system as well the best features are offered by vivo the vivo y12 is give the best processor as well the best quality the best feature I have been liked in this mobile is the ram and the internal storage is soo good the screen the soo good best .the looks and the model is soo worthfull