Review: Sony Xperia M5

Introduction and featuresThe Sony Xperia M5 is a follow-up to the middling Sony Xperia M4 Aqua, which on paper seems to fix many of the issues we had with that mid-range phone. There's more storage, more RAM, a higher-spec camera and a sharper screen.All of this comes at a price, however. The Sony Xperia M5 retails for roughly US$370 (£300, AU$425), while the Sony Xperia M4 Aqua can now be had from around US$220 (£160, AU$255) - but even its launch price was less than the M5.That's a