Frequent international travelers will be happy to hear that Sprint is pushing out an update for the Galaxy S4 that will enable international WiFi calling. The Galaxy S4 is now the first device on Sprint’s Spark 4G LTE network to get international WiFi calling, but there could be some extra fees involved.
WiFi calling from or to the US, US Virgin Islands, or Puerto Rico are completely free. Otherwise, using WiFi calling abroad to contact someone in another foreign country will cause international calling rates to kick in. Most of the phones running on Sprint are already able to use WiFi calling inside of the US, but international WiFi calling is just now rolling out.
Sprint will even let international users send text messages over a WiFi network, which should help people who would otherwise have bad service in a country.
The carrier has not released any information regarding when other smartphones on its 4G LTE network will receive international WiFi calling. The One M8, LG G3, Galaxy S5, Galaxy Note 3, Galaxy Mega, and many others already support domestic WiFi calling, so it would seem likely those phones are next in line to get the international calling and messaging options.