Hii friends today im telling about rapats a1 blutooth smart watch starting days very nice but after few days this performance and charging also very bad if countinuesly charge 2 hours also not 5 hours give battry back up also so what im said my intenstion on this smart watch low battry back up and sound system also very low if talk to another call in smart watch that is big problem there is no provide any hedset system at that time the person smart watch take to ear only single sim also problem in smart watch.