I shere my opinion about vivo-y55s.in a built quality vivo proformed well.vivo use qualcom shanapdragon 425 but in a price rang I can get mi phones because they gave me more good and efficient processor in less price .in this phone the network covarage was a problem for castomer .in a camara profamence vivo y55s is good .but other hand I look for bettery life but in this phone vivo bettery life is very poor because his 2730 mah although the phone does’t support first charging also .if you want to get a camera phone surely you can get this phone but if you want a good smart phone in your badget this phone not for you.