Hi frnds, im using Vivo v7 + mobile since 8 months. Its wonderful experience.all features are tooo gud compared to other mobiles. Supb clarity both of front and back Cameras and battery backp is awesome. And also great memry. And dual sim also working at the same time. Usually we need dual sim and memery features phon. So its the best mobile for that feature. Both sim and memery card working in this mobile phone. Frnds, Its my personal experience about mobiles. . If you are going to to buy any mobles, first just go to Vivo v7+ .thank you vivo team also.