Hello all looking to make the switch back to android and interested in the a9. Right now I have the option of grabbing a 16gb model. I know it has less ram than the 32 gb model but not so much worried about that. I am getting rid of my ip6 due to lack of storage. I know this has expandable storage so as a black and white suggestion would the 16gb work for me willist adding a larger sd card in the mix? Thanks in advance TBC