Hi today I wanna say that vivo is the worst product in lainching smart phones becsuse it prefers only on camera but not kn prossers.now vivo has launched a new smartphone called vivo Y55s, it is quite good for taking photos and selfies and not performes nice at multitasking and ram management and ram optimisation.its network courage is quite good but not works some times, and the coustomer service from yhe vivo company not so good, and at last coming to its charges and billing its too high on there prices , so my opinion on this phone is not to buy this phone.