This would make them to be the second carrier over in the US that delivers the Android 4.4.4 KitKat update to the Galaxy S5, with Verizon Wireless being the first slightly more than a couple of months prior. Apart from the usual slew of security patches as well as bug fixes, the Android 4.4.4 KitKat update will throw in support for international Wi-Fi calling as well as introduce an icon for HD Voice. This particular update will carry the build number G900PVPU1ANK4, and those who happen to rock to the Samsung Galaxy S5 on Sprint ought to be on the receiving end of a notification on their respective smartphones in due time, if they haven’t yet done so already.