I am using Oppo F11 pro from last one year. I was amazed to see its excellent features that is 6 GB ram which make it very fast, its screen is quite large, apart from this it's battery is also durable and long lasting. It can fit any SIM 2G, 3G and 4G. Its processor is also very good. It has GPS location which can be tracked easily if get missed some where. It has biometric sensor finger which protect our smartphone. Its camera is also very good. That's why it is known as selfie expert. I love to use this smartphone. Thanks a lot.