It comes with 2 GB RAM, 16 GB internal storage, 64 GB of expandable storage slot, quad core processor, and Android 4.2 operating system. After lot of speculations, Sony has finally unveiled its Xperia Z1 smartphone. With a 20 megapixel rear camera, this is the best camera smartphone of Sony. Moreover, it is a water proof and dust proof smartphone (IP55 & IP58 certified) and will be launched globally, and expectedly in India also, from this month itself. It comes with 2 GB RAM, 16 GB internal storage, 64 GB of expandable storage slot, quad core processor, and Android 4.2 operating system. After lot of speculations, Sony has finally unveiled its Xperia Z1 smartphone. With a 20 megapixel rear camera, this is the best camera smartphone of Sony. Moreover, it is a water proof and dust proof smartphone (IP55 & IP58 certified) and will be launched globally, and expectedly in India also, from this month itself.