Although we still refer to the device as a (smart)phone, making calls is not among the most frequent types of use anymore.
According to research done in 2012 by O2, a mobile telecom operator, the telephone functionality only ranks 5th after Internet browsing, social network use, playing games and listening to music. More recent research by Pew Research Centre (2015) shows a slightly different ranking of typical use of smartphones, but the trend is the same. Types of use we would associate a decade ago with PCs or PDAs are now most common on smartphones. Although we still refer to the device as a (smart)phone, making calls is not among the most frequent types of use anymore. In the meantime PDAs have become obsolete and the feature phone is being ousted by the smartphone. Smartphones have become indispensable tools for many types of communication, access to information, navigation and the functions provides by early PDAs. They have made us busier. However, it is debatable as to whether smartphones have made us more productive.