(Sony Xperia XZ1 Compact - Factory Unlocked Phone - 4.6" Screen - 32GB - Black (U.S. Warranty)).

Unlike the XZ2 Compact, the previous XZ1 Compact works with VoLTE/WiFi Calling technology, has an auxiliary audio port, and proper ergonomics for one-handed operation.

So while the previous XZ1 Compact works exceptionally well as a phone in my house due to WiFi calling, the XZ2 Compact fluctuates between 1 bar of reception to no reception at all, depending on what room I am in.

In practice, I'm usually using taking photographs rather than video though - and the previous XZ1 Compact supports 4K video and HDR photography already.

ERGONOMICSThe ergonomics are also a major step in the wrong direction when compared to the XZ1 Compact predecessor.