Which?, a highly-regarded UK consumer research organization, found the Samsung S4 to be both the fastest smartphone on the market, and the one offering the best battery-life – a pretty impressive combination.

Using the industry-standard Geekbench 2 software, the S4 comfortably came out on top with a score of 3,188 against the 2,798 of the second-placed HTC One. Graphics for both speed and battery-life after the break …  expand full story