The Sprint Spark compatible Samsung Galaxy S4 is getting a minor update today bringing the WiFi calling feature to the device. The carrier currently supports three other devices with its WiFi calling feature and plans to add plenty more devices in the coming months.
WiFi calling basically allows users to make phone calls and send text messages using the WiFi networks rather than depending on cellular networks. In addition to being light on your wallets, this will also reduce the battery consumption of your smartphone.
Note that only the new Sprint Spark capable Galaxy S4 will be getting the update with no word on the standard variant of the Galaxy S4 yet. As with any device getting the WiFi calling update, users will have to register their desired WiFi networks by signing into their Sprint account to allow access. You can find all the details on how to enable the feature from the link below.
Via: Phone Scoop