Sony Xperia M4 Aqua: Mid-range waterproof phone with Android Lollipop and two-day battery

Sony has injected some high-end design and waterproofing into the mid-range smartphone market with the Xperia M4 Aqua, announced at Mobile World Congress. Available in black, white and what Sony is calling bright coral, the M4 Aqua has a 5in screen with a fairly middling 720p resolution - but the good news is that it runs Google's new Android 5.0 (Lollipop) software on an octa-core, 64-bit processor, and has a similar design to the Xperia Z3 flagship. In a bid to get all of its products on