Introduction and designMid-range is the new high-end. Their cameras are already better than the knackered old Canon in the cupboard and you'll often be hard-pressed to notice the difference between a mid-level phone and a top-end one in day-to-day use. At £229/US$279/AU$389 the Sony Xperia XA is the most accessible one in the new X-series line-up. And...