Sony's latest flagship is out and if you've been following news about is previous "half" flagship, then you'd understand why a great many eyes are on it. To make it short, it has a lot to prove in the Xperia Z5 and its Compact and Premium versions. Sony, however, seems to be content on underlining just one key feature: its camera sensor. With the help of Strategy Analytics, it has weighed the Xperia Z5 against this year's top selling smartphones. Unsurprisingly, it comes out as the king of the hill.