Over the past few years, Apple has demonstrated an uncanny ability to enhance performance with each successive iteration of the iPhone while simultaneously maintaining, and sometimes increasing, battery life.
The recently unveiled iPhone 5s and 5c are no different.
Anandtech recently dug through some FCC documentation and found that the advertised battery capacity on the iPhone 5s is nearly 10 percent larger than on the iPhone 5. Meanwhile, battery capacity on the iPhone 5c is approximately 5 percent larger than on the iPhone 5.
It turns out that there are in fact some battery size increases for both the 5S and 5C if the FCC disclosure is to be believed. While I'm somewhat skeptical sometimes of the accuracy of battery capacities as reported in FCC disclosures (which I noted about the battery size for the Nexus 5), these numbers seem credible given what I've heard, the statement Apple made during the keynote about the 5C battery size going up, and what I'd expect with some board re-layout for the 5S. The iPhone 5S ends up getting an almost 10 percent increase in size versus the iPhone 5, the iPhone 5C goes up around 5 percent versus the iPhone 5.
As for how this affects real-world usage, Apple noted during its keynote earlier this week that 3G talk time and LTE browsing time on both phones check in at an impressive 10 hours, marking a 25 percent increase from the iPhone 5. Also of note, standby time on both devices have been upped from 225 hours to 250 hours when measured against the iPhone 5.
As we've noted before, battery life may not be the sexiest of specs to advertise, but it's something that enhances the user experience greatly and yet is quizzically overlooked by critics.