Just an observation (and news of a new model):
Sony Xperia high-end models in chronological order: overall dimensions, screen size & ratio, weight:
Z3 Compact: 127.3 x 64.9 x 8.6 mm, 4.6" (16:9), 129 g -- a genuinely compact smartphone.
Z5 Compact: 127 x 65 x 8.9 mm, 4.6" (16:9), 138 g -- just a tiny tad bigger on paper than its predecessor but noticeably chunkier in the hand (partly due to the squarer edges, perhaps).
XZ1 Compact: 129 x 64 x 9.3 mm, 4.6" (16:9), 140 g -- feels very similar to the Z5C but still the creep trend continues upwards.
XZ2 Compact: 135 x 65 x 12.1 mm, 5" (18:9), 168 g -- taking the piss now. I've yet to handle this one but 28 extra grams must make it feel substantially heavier, not to mention all that bulging thickness (albeit just at the middle rather than edges).
I've been a fan of this series (with unusually high specs for the sizes) but the XZ1C might be my last. Of course the XZ2C is smaller than its big brother (XZ2) but they've got a cheek calling it compact. Fugly as well. Still quite narrow, to be fair.
Incidentally, Sony seems to have lost interested in tablets. No new models for more than a couple of years and now even the whole tablet section has disappeared from their webshite.