Hello friends I m ayyaz hawaldar. I have recently bought this device mi a1. It good as camera point of view but as compared with other mi devices its not that interesting. It have Google based android one system which is mi’s first device which having android one system. But I felt that the other mi mobiles have good operating system than it. It doesn’t support regular headphones especially when you are calling with it. no doubt that its camera is fantastic. But there are some bugs which soon to be get recovered.