Sony has a few key Xperia devices at the moment. We have recently seen the Xperia Z1S launch with T-Mobile. Not to mention the Z Ultra which surprised everyone when it arrived as a Google Play edition handset. But while these are current handsets, it seems some pieces of a yet to be announced model have recently leaked. The handset in question is the Xperia Z2, which currently sports a codename of Sirius.