Hey friends I wanted a smart watch thats why I buy persona u8 bluetooth smart watch but this is a worst product because its battery life is very poor every time you have to put it on charge and lets talk about sound quality of this watch is very poor as if you are listening songs from this watch your watch battery will be down near about in one hour and the bluetooth range of this device is very poor as poor as I can not tell you about it it have some other features but they all are useless so friends my exeperiance from this product is very poor and I only wasted my money to buy it it is such a wrost product ever and in my opinion it is not the value of money.