Samsung Galaxy S4

The Samsung Galaxy S4 is about the same size and weight as the Galaxy S III, except that the new model is slightly thinner. Even so, the battery capacity has increased by 500mAh to a nicely sounding 2,600mAh total.Still, that battery has to feed four Krait 300 cores and a bigger screen with over twice the number of pixels. Let’s see how the 2013 flagship from Samsung compares to the one from 2012. Before we continue, we should make it clear that we’re using the I9505 for this test, that’s the Snapdragon 600 chipset and not the Exynos 5 Octa.
The first test – the call test – has the screen off and the processor idle, so most of the time it comes down to battery capacity. As expected, the Samsung Galaxy S4 beats the Galaxy S III here, with a healthy margin of 3 and a half hours. Still, the Sony Xperia Z with a slightly older Snapdragon and smaller battery (2,300mAh) managed two hours more.