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The flaps on the Xperia Z
In contrast, the Xperia Z's homescreen feels less personal, or populated, which some people may prefer. Both have included a 'driving mode', which groups together relevant driving-related apps and displays them with oversized icons to make it easier to operate.
Most of the user experience of the rest of the two devices is comparably similar, but I preferred the feel of the HTC One; the screen just seemed that bit more responsive and the design of the handset appeals to me just a little more.
Overall, for me it's a close call between these two handsets: I hadn't been particularly impressed by either brand in recent years and now along come two great devices at once.
Both are also around about the same price – premium Android territory around the £500 mark.