A Samsung Galaxy S4 running stock Android 4.2.2, SIM - and bootloader - unlocked, with pentaband 3G and dual - LTE support was probably unthinkable a few days ago. (mobilesyrup.com)
Also the Nexus is a GSM pentaband phone so you will be able to use the new frequency once the refarming is done (1900Mhz). (tmonews.com)
Miniature Xperia Z1 shown with pentaband HSPA and eight - band LTE The next big Android device we're expecting to see from Sony is the Xperia Z1 S — a miniature version of its current Xperia Z1 flagship handset. (androidcentral.com)